Quick filters:
Page 2 of 5
Cloacal Stock Photos and Images
Ilysia scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/ilysia-scytale-print-the-aniliidae-are-a-monotypic-family-created-for-the-monotypic-genus-anilius-that-contains-the-single-species-a-scytale-common-names-include-american-pipe-snake-and-false-coral-snake-it-is-found-in-south-america-this-snake-possesses-a-vestigial-pelvic-girdle-that-is-visible-as-a-pair-of-cloacal-spurs-it-is-ovoviviparous-it-is-non-venomous-and-its-diet-consists-mainly-of-amphibians-and-other-reptiles-currently-two-subspecies-are-recognized-including-the-typical-form-described-here-1700-1880-image328685456.htmlRM2A2MWJ8–Ilysia scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880
. A manual of zoology. THE METAZOA 60 ment. These digestive secretions are partly produced by the cells of the epithelium of the canal, which are modified to form unicellular or multicellular glands (p. 65), partly by certain large special digestive glands, salivary glands, liver, and pancreas. The nutrient parts of the food are by this means so acted upon that they are ready to be absorbed, and in most animals pass into the blood, to be distributed. Fig. 31. — General view of the viscera of a male frog, from the right side, a, stomach; fi, urinary bladder; c, small intestine; c/, cloacal aper Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-the-metazoa-60-ment-these-digestive-secretions-are-partly-produced-by-the-cells-of-the-epithelium-of-the-canal-which-are-modified-to-form-unicellular-or-multicellular-glands-p-65-partly-by-certain-large-special-digestive-glands-salivary-glands-liver-and-pancreas-the-nutrient-parts-of-the-food-are-by-this-means-so-acted-upon-that-they-are-ready-to-be-absorbed-and-in-most-animals-pass-into-the-blood-to-be-distributed-fig-31-general-view-of-the-viscera-of-a-male-frog-from-the-right-side-a-stomach-fi-urinary-bladder-c-small-intestine-c-cloacal-aper-image216442494.htmlRMPG3PH2–. A manual of zoology. THE METAZOA 60 ment. These digestive secretions are partly produced by the cells of the epithelium of the canal, which are modified to form unicellular or multicellular glands (p. 65), partly by certain large special digestive glands, salivary glands, liver, and pancreas. The nutrient parts of the food are by this means so acted upon that they are ready to be absorbed, and in most animals pass into the blood, to be distributed. Fig. 31. — General view of the viscera of a male frog, from the right side, a, stomach; fi, urinary bladder; c, small intestine; c/, cloacal aper
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image186544585.htmlRMMRDREH–pogona vitticeps / bearded dragon
The elasmobranch fishes (1934) The elasmobranch fishes elasmobranchfish03dani Year: 1934 A B Fig. 186. Finer vessels in kidney, Eeptanchus maculatus. (C. G. Potter, orig.) A. Segment of kidney showing renal vein and advelientes. B. Section of the kidney showing revehentes entering the postcardinal. av., advehentes; da., dorsal aorta; p.c, postcardinal vein; rn., renal vein; rv., revehentes; ur., ureter; vd., vas deferens. the midventral line. Each lateral abdominal receives a cloacal vein (cl.v.) from the rectal region and a femoral vein (f.v.) from the pelvic fin. Between the pelvic and the Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-elasmobranch-fishes-1934-the-elasmobranch-fishes-elasmobranchfish03dani-year-1934-a-b-fig-186-finer-vessels-in-kidney-eeptanchus-maculatus-c-g-potter-orig-a-segment-of-kidney-showing-renal-vein-and-advelientes-b-section-of-the-kidney-showing-revehentes-entering-the-postcardinal-av-advehentes-da-dorsal-aorta-pc-postcardinal-vein-rn-renal-vein-rv-revehentes-ur-ureter-vd-vas-deferens-the-midventral-line-each-lateral-abdominal-receives-a-cloacal-vein-clv-from-the-rectal-region-and-a-femoral-vein-fv-from-the-pelvic-fin-between-the-pelvic-and-the-image239620425.htmlRMRWRJ89–The elasmobranch fishes (1934) The elasmobranch fishes elasmobranchfish03dani Year: 1934 A B Fig. 186. Finer vessels in kidney, Eeptanchus maculatus. (C. G. Potter, orig.) A. Segment of kidney showing renal vein and advelientes. B. Section of the kidney showing revehentes entering the postcardinal. av., advehentes; da., dorsal aorta; p.c, postcardinal vein; rn., renal vein; rv., revehentes; ur., ureter; vd., vas deferens. the midventral line. Each lateral abdominal receives a cloacal vein (cl.v.) from the rectal region and a femoral vein (f.v.) from the pelvic fin. Between the pelvic and the
Gynecology . / XlC.j0-. Fig. 166.—Epispadias. Exstrophy and epispadias are comparatively rare conditions in the female.Both these malformations are different grades of the same embryonic defect. In the early stages of development the cloacal membrane reaches to theprimitive belly-stalk or forerunner of the umbilical cord. As the embryo growsthe upper portion of this membrane disappears as the sides of the abdominalwall and pelvis join, while the lower part corresponds to the opening of the uro-genital sinus and the rectum. 388 GYNECOLOGY Under abnormal conditions the cloacal membrane may p Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynecology-xlcj0-fig-166epispadias-exstrophy-and-epispadias-are-comparatively-rare-conditions-in-the-femaleboth-these-malformations-are-different-grades-of-the-same-embryonic-defect-in-the-early-stages-of-development-the-cloacal-membrane-reaches-to-theprimitive-belly-stalk-or-forerunner-of-the-umbilical-cord-as-the-embryo-growsthe-upper-portion-of-this-membrane-disappears-as-the-sides-of-the-abdominalwall-and-pelvis-join-while-the-lower-part-corresponds-to-the-opening-of-the-uro-genital-sinus-and-the-rectum-388-gynecology-under-abnormal-conditions-the-cloacal-membrane-may-p-image342702658.htmlRM2AWFCMJ–Gynecology . / XlC.j0-. Fig. 166.—Epispadias. Exstrophy and epispadias are comparatively rare conditions in the female.Both these malformations are different grades of the same embryonic defect. In the early stages of development the cloacal membrane reaches to theprimitive belly-stalk or forerunner of the umbilical cord. As the embryo growsthe upper portion of this membrane disappears as the sides of the abdominalwall and pelvis join, while the lower part corresponds to the opening of the uro-genital sinus and the rectum. 388 GYNECOLOGY Under abnormal conditions the cloacal membrane may p
Tortrix scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880, Reimagined by Gibon, design of warm cheerful glowing of brightness a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/tortrix-scytale-print-the-aniliidae-are-a-monotypic-family-created-for-the-monotypic-genus-anilius-that-contains-the-single-species-a-scytale-common-names-include-american-pipe-snake-and-false-coral-snake-it-is-found-in-south-america-this-snake-possesses-a-vestigial-pelvic-girdle-that-is-visible-as-a-pair-of-cloacal-spurs-it-is-ovoviviparous-it-is-non-venomous-and-its-diet-consists-mainly-of-amphibians-and-other-reptiles-currently-two-subspecies-are-recognized-including-the-typical-form-described-here-1700-1880-reimagined-by-gibon-design-of-warm-cheerful-glowing-of-brightness-a-image349791882.htmlRF2B92B36–Tortrix scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880, Reimagined by Gibon, design of warm cheerful glowing of brightness a
. The elasmobranch fishes . rig. 194. General view of veins of body. A. MuMelus antarcUcus. (From T. J. Parker.) B. Eaia erinacea. (From Rand.) a.o.s., anterior cardinal sinus; hr.v., brachial vein; ed.v., caudal vein; cl.v., cloacal vein; f.v., femoral vein; i.j., inferior jugular vein; il.v., iliac vein; l.a.v., lateral abdominal vein; p.c, postcardinal vein; p.c.s., posteardinal sinus; r.p., renal portal vein; s.sc.v., subscapular vein; s.cl.v., subclavian vein. form a fused vessel posteriorly (Scijllium and Raja). In others the postcardi- nals extend as separate vessels from the posterior Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-elasmobranch-fishes-rig-194-general-view-of-veins-of-body-a-mumelus-antarcucus-from-t-j-parker-b-eaia-erinacea-from-rand-aos-anterior-cardinal-sinus-hrv-brachial-vein-edv-caudal-vein-clv-cloacal-vein-fv-femoral-vein-ij-inferior-jugular-vein-ilv-iliac-vein-lav-lateral-abdominal-vein-pc-postcardinal-vein-pcs-posteardinal-sinus-rp-renal-portal-vein-sscv-subscapular-vein-sclv-subclavian-vein-form-a-fused-vessel-posteriorly-scijllium-and-raja-in-others-the-postcardi-nals-extend-as-separate-vessels-from-the-posterior-image178413465.htmlRMMA7C5D–. The elasmobranch fishes . rig. 194. General view of veins of body. A. MuMelus antarcUcus. (From T. J. Parker.) B. Eaia erinacea. (From Rand.) a.o.s., anterior cardinal sinus; hr.v., brachial vein; ed.v., caudal vein; cl.v., cloacal vein; f.v., femoral vein; i.j., inferior jugular vein; il.v., iliac vein; l.a.v., lateral abdominal vein; p.c, postcardinal vein; p.c.s., posteardinal sinus; r.p., renal portal vein; s.sc.v., subscapular vein; s.cl.v., subclavian vein. form a fused vessel posteriorly (Scijllium and Raja). In others the postcardi- nals extend as separate vessels from the posterior
Tortrix scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/tortrix-scytale-print-the-aniliidae-are-a-monotypic-family-created-for-the-monotypic-genus-anilius-that-contains-the-single-species-a-scytale-common-names-include-american-pipe-snake-and-false-coral-snake-it-is-found-in-south-america-this-snake-possesses-a-vestigial-pelvic-girdle-that-is-visible-as-a-pair-of-cloacal-spurs-it-is-ovoviviparous-it-is-non-venomous-and-its-diet-consists-mainly-of-amphibians-and-other-reptiles-currently-two-subspecies-are-recognized-including-the-typical-form-described-here-1700-1880-image328703521.htmlRM2A2NMKD–Tortrix scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880
![. A manual of zoology. 322 MANUAL OF ZOOLOGY sect. of an Ascidian, being of similar shape, with a rounded body and a long tail-like appendage attached to the ventral side, and with a distinct notochord. This, however, is an adult animal, known as Appendicuia- ria. It never becomes fixed and retains permanently its chordate characteristics. OT". Fig. 202.—BotryllUS violaceus. or, oral apertures; cl, opening of common cloacal chamber. (After Milne-Edwards.) A number of other Urochorda are permanently free-swimming, but these are all almost, if not quite, as thoroughly metamorphosed as the A Stock Photo](https://c8.alamy.com/comp/PG3YY9/a-manual-of-zoology-322-manual-of-zoology-sect-of-an-ascidian-being-of-similar-shape-with-a-rounded-body-and-a-long-tail-like-appendage-attached-to-the-ventral-side-and-with-a-distinct-notochord-this-however-is-an-adult-animal-known-as-appendicuia-ria-it-never-becomes-fixed-and-retains-permanently-its-chordate-characteristics-otquot-fig-202botryllus-violaceus-or-oral-apertures-cl-opening-of-common-cloacal-chamber-after-milne-edwards-a-number-of-other-urochorda-are-permanently-free-swimming-but-these-are-all-almost-if-not-quite-as-thoroughly-metamorphosed-as-the-a-PG3YY9.jpg ". A manual of zoology. 322 MANUAL OF ZOOLOGY sect. of an Ascidian, being of similar shape, with a rounded body and a long tail-like appendage attached to the ventral side, and with a distinct notochord. This, however, is an adult animal, known as Appendicuia- ria. It never becomes fixed and retains permanently its chordate characteristics. OT". Fig. 202.—BotryllUS violaceus. or, oral apertures; cl, opening of common cloacal chamber. (After Milne-Edwards.) A number of other Urochorda are permanently free-swimming, but these are all almost, if not quite, as thoroughly metamorphosed as the A Stock Photo")
. A manual of zoology. 322 MANUAL OF ZOOLOGY sect. of an Ascidian, being of similar shape, with a rounded body and a long tail-like appendage attached to the ventral side, and with a distinct notochord. This, however, is an adult animal, known as Appendicuia- ria. It never becomes fixed and retains permanently its chordate characteristics. OT". Fig. 202.—BotryllUS violaceus. or, oral apertures; cl, opening of common cloacal chamber. (After Milne-Edwards.) A number of other Urochorda are permanently free-swimming, but these are all almost, if not quite, as thoroughly metamorphosed as the A Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-322-manual-of-zoology-sect-of-an-ascidian-being-of-similar-shape-with-a-rounded-body-and-a-long-tail-like-appendage-attached-to-the-ventral-side-and-with-a-distinct-notochord-this-however-is-an-adult-animal-known-as-appendicuia-ria-it-never-becomes-fixed-and-retains-permanently-its-chordate-characteristics-otquot-fig-202botryllus-violaceus-or-oral-apertures-cl-opening-of-common-cloacal-chamber-after-milne-edwards-a-number-of-other-urochorda-are-permanently-free-swimming-but-these-are-all-almost-if-not-quite-as-thoroughly-metamorphosed-as-the-a-image216446701.htmlRMPG3YY9–. A manual of zoology. 322 MANUAL OF ZOOLOGY sect. of an Ascidian, being of similar shape, with a rounded body and a long tail-like appendage attached to the ventral side, and with a distinct notochord. This, however, is an adult animal, known as Appendicuia- ria. It never becomes fixed and retains permanently its chordate characteristics. OT". Fig. 202.—BotryllUS violaceus. or, oral apertures; cl, opening of common cloacal chamber. (After Milne-Edwards.) A number of other Urochorda are permanently free-swimming, but these are all almost, if not quite, as thoroughly metamorphosed as the A
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image186544610.htmlRMMRDRFE–pogona vitticeps / bearded dragon
Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0201clau Year: 1884 Enl A PIG- 566.—a, Salpa mncroii/'ta. '>, S. ilemocratica. 0, Mouth; A, cloacal aperture ; N, ganglion ; Br, gill End, endostyle; Wg. ciliated pit; Ma, mantle; Nu, nucleus; C, heart; Bmb, embryo ; Stp, stolo prolifei-. from the pharyngeal cavity into the cloacal chamber. In Salpa the transverse slits are represented by one very large gill-slit on each side, so that the branchial wall is reduced to a median band (the median part of the gill of Doliolum}. The two arches of cilia whic Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elementary-text-book-of-zoology-1884-elementary-text-book-of-zoology-elementarytextbo0201clau-year-1884-enl-a-pig-566a-salpa-mncroiita-gt-s-ilemocratica-0-mouth-a-cloacal-aperture-n-ganglion-br-gill-end-endostyle-wg-ciliated-pit-ma-mantle-nu-nucleus-c-heart-bmb-embryo-stp-stolo-prolifei-from-the-pharyngeal-cavity-into-the-cloacal-chamber-in-salpa-the-transverse-slits-are-represented-by-one-very-large-gill-slit-on-each-side-so-that-the-branchial-wall-is-reduced-to-a-median-band-the-median-part-of-the-gill-of-doliolum-the-two-arches-of-cilia-whic-image239582081.htmlRMRWNWAW–Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0201clau Year: 1884 Enl A PIG- 566.—a, Salpa mncroii/'ta. '>, S. ilemocratica. 0, Mouth; A, cloacal aperture ; N, ganglion ; Br, gill End, endostyle; Wg. ciliated pit; Ma, mantle; Nu, nucleus; C, heart; Bmb, embryo ; Stp, stolo prolifei-. from the pharyngeal cavity into the cloacal chamber. In Salpa the transverse slits are represented by one very large gill-slit on each side, so that the branchial wall is reduced to a median band (the median part of the gill of Doliolum}. The two arches of cilia whic
The encyclopædia britannica; a dictionary of arts, sciences, literature and general information . sur-rounded by eight rounded lobes.This is the mouth or branchialaperture, and it indicates theanterior end of the animal. Abouthalf-way back from the anteriorend is the atrial or cloacal aperture,surrounded by six lobes and placedupon the dorsal edge. When theAscidian is living and undisturbed,water is being constantly drawnin through the branchial apertureand passed out through the atrial.If coloured particles be placed inthe water near the apertures, theyare seen to be sucked into the bodythrou Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-encyclopdia-britannica-a-dictionary-of-arts-sciences-literature-and-general-information-sur-rounded-by-eight-rounded-lobesthis-is-the-mouth-or-branchialaperture-and-it-indicates-theanterior-end-of-the-animal-abouthalf-way-back-from-the-anteriorend-is-the-atrial-or-cloacal-aperturesurrounded-by-six-lobes-and-placedupon-the-dorsal-edge-when-theascidian-is-living-and-undisturbedwater-is-being-constantly-drawnin-through-the-branchial-apertureand-passed-out-through-the-atrialif-coloured-particles-be-placed-inthe-water-near-the-apertures-theyare-seen-to-be-sucked-into-the-bodythrou-image339229199.htmlRM2AKW68F–The encyclopædia britannica; a dictionary of arts, sciences, literature and general information . sur-rounded by eight rounded lobes.This is the mouth or branchialaperture, and it indicates theanterior end of the animal. Abouthalf-way back from the anteriorend is the atrial or cloacal aperture,surrounded by six lobes and placedupon the dorsal edge. When theAscidian is living and undisturbed,water is being constantly drawnin through the branchial apertureand passed out through the atrial.If coloured particles be placed inthe water near the apertures, theyare seen to be sucked into the bodythrou
Tortrix scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880, Reimagined by Gibon, design of warm cheerful glowing of brightness a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/tortrix-scytale-print-the-aniliidae-are-a-monotypic-family-created-for-the-monotypic-genus-anilius-that-contains-the-single-species-a-scytale-common-names-include-american-pipe-snake-and-false-coral-snake-it-is-found-in-south-america-this-snake-possesses-a-vestigial-pelvic-girdle-that-is-visible-as-a-pair-of-cloacal-spurs-it-is-ovoviviparous-it-is-non-venomous-and-its-diet-consists-mainly-of-amphibians-and-other-reptiles-currently-two-subspecies-are-recognized-including-the-typical-form-described-here-1700-1880-reimagined-by-gibon-design-of-warm-cheerful-glowing-of-brightness-a-image349791868.htmlRF2B92B2M–Tortrix scytale, Print, The Aniliidae are a monotypic family created for the monotypic genus Anilius that contains the single species A. scytale. Common names include American pipe snake and false coral snake. It is found in South America. This snake possesses a vestigial pelvic girdle that is visible as a pair of cloacal spurs. It is ovoviviparous. It is non-venomous, and its diet consists mainly of amphibians and other reptiles. Currently, two subspecies are recognized, including the typical form described here., 1700-1880, Reimagined by Gibon, design of warm cheerful glowing of brightness a
. Cunningham's Text-book of anatomy. Anatomy. 1336 THE UKINO-GENITAL SYSTEM. from the tail to the umbilical cord. At its cephalic end is a tubercle known as the cloacal tubercle, and behind lies the coccygeal tubercle. Immediately in front of the latter the anus is formed, and between this opening and the cloacal tubercle the urino-genital canal opens on the surface by a median slit-like aperture, the primitive urino-genital opening. The cloacal tubercle early becomes subdivided into an apical genital eminence which occupies the middle line and lies at the cephalic end of the slit-like urino-g Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cunninghams-text-book-of-anatomy-anatomy-1336-the-ukino-genital-system-from-the-tail-to-the-umbilical-cord-at-its-cephalic-end-is-a-tubercle-known-as-the-cloacal-tubercle-and-behind-lies-the-coccygeal-tubercle-immediately-in-front-of-the-latter-the-anus-is-formed-and-between-this-opening-and-the-cloacal-tubercle-the-urino-genital-canal-opens-on-the-surface-by-a-median-slit-like-aperture-the-primitive-urino-genital-opening-the-cloacal-tubercle-early-becomes-subdivided-into-an-apical-genital-eminence-which-occupies-the-middle-line-and-lies-at-the-cephalic-end-of-the-slit-like-urino-g-image216339718.htmlRMPFY3EE–. Cunningham's Text-book of anatomy. Anatomy. 1336 THE UKINO-GENITAL SYSTEM. from the tail to the umbilical cord. At its cephalic end is a tubercle known as the cloacal tubercle, and behind lies the coccygeal tubercle. Immediately in front of the latter the anus is formed, and between this opening and the cloacal tubercle the urino-genital canal opens on the surface by a median slit-like aperture, the primitive urino-genital opening. The cloacal tubercle early becomes subdivided into an apical genital eminence which occupies the middle line and lies at the cephalic end of the slit-like urino-g
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image186544619.htmlRMMRDRFR–pogona vitticeps / bearded dragon
The elasmobranch fishes (1934) The elasmobranch fishes elasmobranchfish03dani Year: 1934 rig. 194. General view of veins of body. A. MuMelus antarcUcus. (From T. J. Parker.) B. Eaia erinacea. (From Rand.) a.o.s., anterior cardinal sinus; hr.v., brachial vein; ed.v., caudal vein; cl.v., cloacal vein; f.v., femoral vein; i.j., inferior jugular vein; il.v., iliac vein; l.a.v., lateral abdominal vein; p.c, postcardinal vein; p.c.s., posteardinal sinus; r.p., renal portal vein; s.sc.v., subscapular vein; s.cl.v., subclavian vein. form a fused vessel posteriorly (Scijllium and Raja). In others the Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-elasmobranch-fishes-1934-the-elasmobranch-fishes-elasmobranchfish03dani-year-1934-rig-194-general-view-of-veins-of-body-a-mumelus-antarcucus-from-t-j-parker-b-eaia-erinacea-from-rand-aos-anterior-cardinal-sinus-hrv-brachial-vein-edv-caudal-vein-clv-cloacal-vein-fv-femoral-vein-ij-inferior-jugular-vein-ilv-iliac-vein-lav-lateral-abdominal-vein-pc-postcardinal-vein-pcs-posteardinal-sinus-rp-renal-portal-vein-sscv-subscapular-vein-sclv-subclavian-vein-form-a-fused-vessel-posteriorly-scijllium-and-raja-in-others-the-image239621671.htmlRMRWRKTR–The elasmobranch fishes (1934) The elasmobranch fishes elasmobranchfish03dani Year: 1934 rig. 194. General view of veins of body. A. MuMelus antarcUcus. (From T. J. Parker.) B. Eaia erinacea. (From Rand.) a.o.s., anterior cardinal sinus; hr.v., brachial vein; ed.v., caudal vein; cl.v., cloacal vein; f.v., femoral vein; i.j., inferior jugular vein; il.v., iliac vein; l.a.v., lateral abdominal vein; p.c, postcardinal vein; p.c.s., posteardinal sinus; r.p., renal portal vein; s.sc.v., subscapular vein; s.cl.v., subclavian vein. form a fused vessel posteriorly (Scijllium and Raja). In others the
The evolution of man: a popular exposition of the principal points of human ontogeny and phylogenyFrom the German of Ernst Haeckel . thesimple structure of the allantois (which does not as yetdevelop a placenta), with many other characters, have beeninherited by the Pouched Animals from Cloacal Animals.On the other hand, they have lost the independent coracoidbone {os coracoideuim) attached to the shoulder girdle. Amore important step consists in the fact that a cloaca is nolonger formed ; the cavity of the rectum, together with theanal opening, is separated by a partition wall from the urinar Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-evolution-of-man-a-popular-exposition-of-the-principal-points-of-human-ontogeny-and-phylogenyfrom-the-german-of-ernst-haeckel-thesimple-structure-of-the-allantois-which-does-not-as-yetdevelop-a-placenta-with-many-other-characters-have-beeninherited-by-the-pouched-animals-from-cloacal-animalson-the-other-hand-they-have-lost-the-independent-coracoidbone-os-coracoideuim-attached-to-the-shoulder-girdle-amore-important-step-consists-in-the-fact-that-a-cloaca-is-nolonger-formed-the-cavity-of-the-rectum-together-with-theanal-opening-is-separated-by-a-partition-wall-from-the-urinar-image339994166.htmlRM2AN420P–The evolution of man: a popular exposition of the principal points of human ontogeny and phylogenyFrom the German of Ernst Haeckel . thesimple structure of the allantois (which does not as yetdevelop a placenta), with many other characters, have beeninherited by the Pouched Animals from Cloacal Animals.On the other hand, they have lost the independent coracoidbone {os coracoideuim) attached to the shoulder girdle. Amore important step consists in the fact that a cloaca is nolonger formed ; the cavity of the rectum, together with theanal opening, is separated by a partition wall from the urinar
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. DEVELOPMENT OF THE DIGESTIVE TRACT 281 O-A contact with the ectoderm to form the cloacal membrane (Fig. 170, cm) lies a little in front of the actual end of the archenteric cylinder, the portion of the latter which lies posterior to the membrane forming what has been termed the postanal gut {p.an). This diminishes in size during development and early disappears altogether, and the pouch-like fold seen in Fig. 170 between the intestinal portion of the archenteron and the allantoic stalk (al) d Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-development-of-the-human-body-a-manual-of-human-embryology-embryology-embryo-non-mammalian-development-of-the-digestive-tract-281-o-a-contact-with-the-ectoderm-to-form-the-cloacal-membrane-fig-170-cm-lies-a-little-in-front-of-the-actual-end-of-the-archenteric-cylinder-the-portion-of-the-latter-which-lies-posterior-to-the-membrane-forming-what-has-been-termed-the-postanal-gut-pan-this-diminishes-in-size-during-development-and-early-disappears-altogether-and-the-pouch-like-fold-seen-in-fig-170-between-the-intestinal-portion-of-the-archenteron-and-the-allantoic-stalk-al-d-image215957821.htmlRMPF9MB9–. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. DEVELOPMENT OF THE DIGESTIVE TRACT 281 O-A contact with the ectoderm to form the cloacal membrane (Fig. 170, cm) lies a little in front of the actual end of the archenteric cylinder, the portion of the latter which lies posterior to the membrane forming what has been termed the postanal gut {p.an). This diminishes in size during development and early disappears altogether, and the pouch-like fold seen in Fig. 170 between the intestinal portion of the archenteron and the allantoic stalk (al) d
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image186544583.htmlRMMRDREF–pogona vitticeps / bearded dragon
. Outlines of zoology. stem.—Tunicates are hermaphrodite.The reproductive organs (Fig. 240, G^ are very simple, andlie in the loop of the intestine. The ovary is the larger,an4 contains a cavity into which the ova are set free, andfrom which they pass outwards along an oviduct whichopens into the cloacal chamber. The testis surrounds theovary, and is mature at a different time (dichogamy); its29 450 SUB-PHYLUM UROCHORDA OR TUNICATA. duct runs by the side of the oviduct. In some forms, wherethe gonads are near the cloaca, there are no ducts. Theova are surrounded by follicular cells, and probab Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/outlines-of-zoology-stemtunicates-are-hermaphroditethe-reproductive-organs-fig-240-g-are-very-simple-andlie-in-the-loop-of-the-intestine-the-ovary-is-the-largeran4-contains-a-cavity-into-which-the-ova-are-set-free-andfrom-which-they-pass-outwards-along-an-oviduct-whichopens-into-the-cloacal-chamber-the-testis-surrounds-theovary-and-is-mature-at-a-different-time-dichogamy-its29-450-sub-phylum-urochorda-or-tunicata-duct-runs-by-the-side-of-the-oviduct-in-some-forms-wherethe-gonads-are-near-the-cloaca-there-are-no-ducts-theova-are-surrounded-by-follicular-cells-and-probab-image337140450.htmlRM2AGE22A–. Outlines of zoology. stem.—Tunicates are hermaphrodite.The reproductive organs (Fig. 240, G^ are very simple, andlie in the loop of the intestine. The ovary is the larger,an4 contains a cavity into which the ova are set free, andfrom which they pass outwards along an oviduct whichopens into the cloacal chamber. The testis surrounds theovary, and is mature at a different time (dichogamy); its29 450 SUB-PHYLUM UROCHORDA OR TUNICATA. duct runs by the side of the oviduct. In some forms, wherethe gonads are near the cloaca, there are no ducts. Theova are surrounded by follicular cells, and probab
. A manual of zoology. Zoology. 'â Mik Fig. 162.âSection of cortex oiChondrilla nucula, the skeleton omitted fatter Scliulze). c', afferent canals; c-, effereni canals; g, ampuUas; m, cloaca; 0, osculum. contain the collared cells, while the central cavity, now called cloaca, is lined with pavement epithelium. By increase of mesoderm and corre- sponding thickening of the body wall the ampullie become separated from external and cloacal surfaces (Leucon t}fpe). They nevertheless retain their connection with both surfaces by means of cavities which may 'f (sis Fig. 163. Fig. 163.âSurface'. Pleas Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-zoology-mik-fig-162section-of-cortex-oichondrilla-nucula-the-skeleton-omitted-fatter-scliulze-c-afferent-canals-c-effereni-canals-g-ampuuas-m-cloaca-0-osculum-contain-the-collared-cells-while-the-central-cavity-now-called-cloaca-is-lined-with-pavement-epithelium-by-increase-of-mesoderm-and-corre-sponding-thickening-of-the-body-wall-the-ampullie-become-separated-from-external-and-cloacal-surfaces-leucon-tfpe-they-nevertheless-retain-their-connection-with-both-surfaces-by-means-of-cavities-which-may-f-sis-fig-163-fig-163surface-pleas-image216442368.htmlRMPG3PCG–. A manual of zoology. Zoology. 'â Mik Fig. 162.âSection of cortex oiChondrilla nucula, the skeleton omitted fatter Scliulze). c', afferent canals; c-, effereni canals; g, ampuUas; m, cloaca; 0, osculum. contain the collared cells, while the central cavity, now called cloaca, is lined with pavement epithelium. By increase of mesoderm and corre- sponding thickening of the body wall the ampullie become separated from external and cloacal surfaces (Leucon t}fpe). They nevertheless retain their connection with both surfaces by means of cavities which may 'f (sis Fig. 163. Fig. 163.âSurface'. Pleas
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image187020543.htmlRMMT7EH3–pogona vitticeps / bearded dragon
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 26.—Iliopelvic glands (Cuneo-and Marcille). Fig. 28.—Scheme of the ileo-pelvicglands (Cuneo and Marcille). MALIGNANT. Carcinomata may be primary or secondary, single or multiple, in any of the lym-phatic structures within the perineal body. Sarcomata may be primary or secondary, single or multiple (usually single), in anyof the lymphatic structures of the perineal body. INJURIES. Incisions, Lacerations, Contusions, are acquired by accident or design, primary orsecondary, single Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fig-26iliopelvic-glands-cuneo-and-marcille-fig-28scheme-of-the-ileo-pelvicglands-cuneo-and-marcille-malignant-carcinomata-may-be-primary-or-secondary-single-or-multiple-in-any-of-the-lym-phatic-structures-within-the-perineal-body-sarcomata-may-be-primary-or-secondary-single-or-multiple-usually-single-in-anyof-the-lymphatic-structures-of-the-perineal-body-injuries-incisions-lacerations-contusions-are-acquired-by-accident-or-design-primary-orsecondary-single-image340141550.htmlRM2ANAP0E–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 26.—Iliopelvic glands (Cuneo-and Marcille). Fig. 28.—Scheme of the ileo-pelvicglands (Cuneo and Marcille). MALIGNANT. Carcinomata may be primary or secondary, single or multiple, in any of the lym-phatic structures within the perineal body. Sarcomata may be primary or secondary, single or multiple (usually single), in anyof the lymphatic structures of the perineal body. INJURIES. Incisions, Lacerations, Contusions, are acquired by accident or design, primary orsecondary, single
. A manual of zoology. Zoology. II. ACEPHALA 319 excavated at the posterior end, so that when brought together two open- ings, an upper and a lower, resuk (fig. 320, C). The lower of these is the branchial opening by which fresh water passes into the mantle cham- ber; it flows out after passing over the gills, along with the fxces, through the upper or cloacal opening. In many bivalves the free edges of the mantle grow together, leaving three openings (fig. 320, B), one for the protrusion of the foot, the others the two just described, now called the branchial and cloacal siphons. By further d Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-zoology-ii-acephala-319-excavated-at-the-posterior-end-so-that-when-brought-together-two-open-ings-an-upper-and-a-lower-resuk-fig-320-c-the-lower-of-these-is-the-branchial-opening-by-which-fresh-water-passes-into-the-mantle-cham-ber-it-flows-out-after-passing-over-the-gills-along-with-the-fxces-through-the-upper-or-cloacal-opening-in-many-bivalves-the-free-edges-of-the-mantle-grow-together-leaving-three-openings-fig-320-b-one-for-the-protrusion-of-the-foot-the-others-the-two-just-described-now-called-the-branchial-and-cloacal-siphons-by-further-d-image216446759.htmlRMPG401B–. A manual of zoology. Zoology. II. ACEPHALA 319 excavated at the posterior end, so that when brought together two open- ings, an upper and a lower, resuk (fig. 320, C). The lower of these is the branchial opening by which fresh water passes into the mantle cham- ber; it flows out after passing over the gills, along with the fxces, through the upper or cloacal opening. In many bivalves the free edges of the mantle grow together, leaving three openings (fig. 320, B), one for the protrusion of the foot, the others the two just described, now called the branchial and cloacal siphons. By further d
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image186544581.htmlRMMRDRED–pogona vitticeps / bearded dragon
Textbook of normal histology: including an account of the development of the tissues and of the organs . f thekidney consists in a dorsal outgrowth fromthe Wolffian duct near its cloacal end ; this diver-ticulum grows forward and parallel with theWolffian duct until its extremity reaches aposition behind and somewhat above the caudalend of the Wolffian body. The primary kidney-tube now expands at its upper end, the dilatedportion subsequently undergoing peripheralcleavage into a number of tubular compart-ments. Coincidently with the growth and dif-ferentiation of the epithelial evagination fro Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/textbook-of-normal-histology-including-an-account-of-the-development-of-the-tissues-and-of-the-organs-f-thekidney-consists-in-a-dorsal-outgrowth-fromthe-wolffian-duct-near-its-cloacal-end-this-diver-ticulum-grows-forward-and-parallel-with-thewolffian-duct-until-its-extremity-reaches-aposition-behind-and-somewhat-above-the-caudalend-of-the-wolffian-body-the-primary-kidney-tube-now-expands-at-its-upper-end-the-dilatedportion-subsequently-undergoing-peripheralcleavage-into-a-number-of-tubular-compart-ments-coincidently-with-the-growth-and-dif-ferentiation-of-the-epithelial-evagination-fro-image338951070.htmlRM2AKCFFA–Textbook of normal histology: including an account of the development of the tissues and of the organs . f thekidney consists in a dorsal outgrowth fromthe Wolffian duct near its cloacal end ; this diver-ticulum grows forward and parallel with theWolffian duct until its extremity reaches aposition behind and somewhat above the caudalend of the Wolffian body. The primary kidney-tube now expands at its upper end, the dilatedportion subsequently undergoing peripheralcleavage into a number of tubular compart-ments. Coincidently with the growth and dif-ferentiation of the epithelial evagination fro
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. 302. The Posterior Part or the Ukixucexital Apparatus ok A, Epicrium gluiino.ium and B, Cd-'uilia luniljricoides. CI 0/} CP, the different sections of the cloaca, and B-i, its caical processes : the cloaca is shown retracted in A and everted in B ; ds, cloacal slieath ; m. r. <-l, retractor muscle of the cloaca ; B, B'^, the two horns of the urinary bladder ; y kidneys ; ly, Wolffian duct; my, Mxillerian duct; r, rectum ; 2Idy, cloacal aperture ; ffS, scales in the integument. Two kinds of copulatory organs are Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elements-of-the-comparative-anatomy-of-vertebrates-anatomy-comparative-fig-302-the-posterior-part-or-the-ukixucexital-apparatus-ok-a-epicrium-gluiinoium-and-b-cd-uilia-luniljricoides-ci-0-cp-the-different-sections-of-the-cloaca-and-b-i-its-caical-processes-the-cloaca-is-shown-retracted-in-a-and-everted-in-b-ds-cloacal-slieath-m-r-lt-l-retractor-muscle-of-the-cloaca-b-b-the-two-horns-of-the-urinary-bladder-y-kidneys-ly-wolffian-duct-my-mxillerian-duct-r-rectum-2idy-cloacal-aperture-ffs-scales-in-the-integument-two-kinds-of-copulatory-organs-are-image216418461.htmlRMPG2KXN–. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. 302. The Posterior Part or the Ukixucexital Apparatus ok A, Epicrium gluiino.ium and B, Cd-'uilia luniljricoides. CI 0/} CP, the different sections of the cloaca, and B-i, its caical processes : the cloaca is shown retracted in A and everted in B ; ds, cloacal slieath ; m. r. <-l, retractor muscle of the cloaca ; B, B'^, the two horns of the urinary bladder ; y kidneys ; ly, Wolffian duct; my, Mxillerian duct; r, rectum ; 2Idy, cloacal aperture ; ffS, scales in the integument. Two kinds of copulatory organs are
pogona vitticeps / bearded dragon Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pogona-vitticeps-bearded-dragon-image186544579.htmlRMMRDREB–pogona vitticeps / bearded dragon
. Zoology of Egypt. al of the river. In this species two slight prseanal eminences are occasionally present in both sexes,immediately before the cloacal opening, occupying the position of the prseanal pores ofthe other lizards. They are present in specimens from different parts of Africa, e. g. theisland of Lagos, Port Elizabeth, Lake Nyassa, Condo (Quanza), Boluma (Senegambia),Lamu (E. Africa), and Ashantiland. The smallest of all the specimens in the BritishMuseum, from the Quanza, is very instructive. The apical pores of the scales anteriorto the cloacal opening are larger than in any other Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/zoology-of-egypt-al-of-the-river-in-this-species-two-slight-prseanal-eminences-are-occasionally-present-in-both-sexesimmediately-before-the-cloacal-opening-occupying-the-position-of-the-prseanal-pores-ofthe-other-lizards-they-are-present-in-specimens-from-different-parts-of-africa-e-g-theisland-of-lagos-port-elizabeth-lake-nyassa-condo-quanza-boluma-senegambialamu-e-africa-and-ashantiland-the-smallest-of-all-the-specimens-in-the-britishmuseum-from-the-quanza-is-very-instructive-the-apical-pores-of-the-scales-anteriorto-the-cloacal-opening-are-larger-than-in-any-other-image336704205.htmlRM2AFP5J5–. Zoology of Egypt. al of the river. In this species two slight prseanal eminences are occasionally present in both sexes,immediately before the cloacal opening, occupying the position of the prseanal pores ofthe other lizards. They are present in specimens from different parts of Africa, e. g. theisland of Lagos, Port Elizabeth, Lake Nyassa, Condo (Quanza), Boluma (Senegambia),Lamu (E. Africa), and Ashantiland. The smallest of all the specimens in the BritishMuseum, from the Quanza, is very instructive. The apical pores of the scales anteriorto the cloacal opening are larger than in any other
![. A manual of zoology. XII PHYLUM CHORDATA 429 When the embryo escapes from the egg by the rupture of the egg-membrane it swims about as a little fish-like creature or tadpole, with two pairs of branched external gills and a. Fig. 257.—Rana esculenta. Urinogenital organs of the female. N, kidneys; Od, oviduct; Ot, its ccelomic aperture: Ov, left ovary (the right is removed); P, cloacal aperture of oviduct; i". S', cloacal apertures of ureters; Ut, uterine dilatation of oviduct. (From Wiedersheim's Comparative Anatomy.) long tail. There is no mouth, and eyes have not yet become developed. Stock Photo](https://c8.alamy.com/comp/PG3YGC/a-manual-of-zoology-xii-phylum-chordata-429-when-the-embryo-escapes-from-the-egg-by-the-rupture-of-the-egg-membrane-it-swims-about-as-a-little-fish-like-creature-or-tadpole-with-two-pairs-of-branched-external-gills-and-a-fig-257rana-esculenta-urinogenital-organs-of-the-female-n-kidneys-od-oviduct-ot-its-ccelomic-aperture-ov-left-ovary-the-right-is-removed-p-cloacal-aperture-of-oviduct-iquot-s-cloacal-apertures-of-ureters-ut-uterine-dilatation-of-oviduct-from-wiedersheims-comparative-anatomy-long-tail-there-is-no-mouth-and-eyes-have-not-yet-become-developed-PG3YGC.jpg ". A manual of zoology. XII PHYLUM CHORDATA 429 When the embryo escapes from the egg by the rupture of the egg-membrane it swims about as a little fish-like creature or tadpole, with two pairs of branched external gills and a. Fig. 257.—Rana esculenta. Urinogenital organs of the female. N, kidneys; Od, oviduct; Ot, its ccelomic aperture: Ov, left ovary (the right is removed); P, cloacal aperture of oviduct; i". S', cloacal apertures of ureters; Ut, uterine dilatation of oviduct. (From Wiedersheim's Comparative Anatomy.) long tail. There is no mouth, and eyes have not yet become developed. Stock Photo")
. A manual of zoology. XII PHYLUM CHORDATA 429 When the embryo escapes from the egg by the rupture of the egg-membrane it swims about as a little fish-like creature or tadpole, with two pairs of branched external gills and a. Fig. 257.—Rana esculenta. Urinogenital organs of the female. N, kidneys; Od, oviduct; Ot, its ccelomic aperture: Ov, left ovary (the right is removed); P, cloacal aperture of oviduct; i". S', cloacal apertures of ureters; Ut, uterine dilatation of oviduct. (From Wiedersheim's Comparative Anatomy.) long tail. There is no mouth, and eyes have not yet become developed. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-xii-phylum-chordata-429-when-the-embryo-escapes-from-the-egg-by-the-rupture-of-the-egg-membrane-it-swims-about-as-a-little-fish-like-creature-or-tadpole-with-two-pairs-of-branched-external-gills-and-a-fig-257rana-esculenta-urinogenital-organs-of-the-female-n-kidneys-od-oviduct-ot-its-ccelomic-aperture-ov-left-ovary-the-right-is-removed-p-cloacal-aperture-of-oviduct-iquot-s-cloacal-apertures-of-ureters-ut-uterine-dilatation-of-oviduct-from-wiedersheims-comparative-anatomy-long-tail-there-is-no-mouth-and-eyes-have-not-yet-become-developed-image216446396.htmlRMPG3YGC–. A manual of zoology. XII PHYLUM CHORDATA 429 When the embryo escapes from the egg by the rupture of the egg-membrane it swims about as a little fish-like creature or tadpole, with two pairs of branched external gills and a. Fig. 257.—Rana esculenta. Urinogenital organs of the female. N, kidneys; Od, oviduct; Ot, its ccelomic aperture: Ov, left ovary (the right is removed); P, cloacal aperture of oviduct; i". S', cloacal apertures of ureters; Ut, uterine dilatation of oviduct. (From Wiedersheim's Comparative Anatomy.) long tail. There is no mouth, and eyes have not yet become developed.
green tree python / morelia viridis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/green-tree-python-morelia-viridis-image186544248.htmlRMMRDR2G–green tree python / morelia viridis
. Journal of morphology. tinguished. The most obvious are the largedeutoplasmic spherules which form a cap between the germinalvesicle and the vegetative pole; this may be called the spherulecap (figs. 1, 9, 11, 13, sc). The periphery of the oocyte is freefrom these spherules. They are highly refractive in fresh mate-rial and appear yellow by reflected light. They stain intenselywith Sudan iii and are lipoid in character. At the center of thespherule cap, lying close to the germinal vesicle is a finely gran- Reference letters bid., blastodiscC.C., cloacal chalazac.p., central protoplasmest., c Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/journal-of-morphology-tinguished-the-most-obvious-are-the-largedeutoplasmic-spherules-which-form-a-cap-between-the-germinalvesicle-and-the-vegetative-pole-this-may-be-called-the-spherulecap-figs-1-9-11-13-sc-the-periphery-of-the-oocyte-is-freefrom-these-spherules-they-are-highly-refractive-in-fresh-mate-rial-and-appear-yellow-by-reflected-light-they-stain-intenselywith-sudan-iii-and-are-lipoid-in-character-at-the-center-of-thespherule-cap-lying-close-to-the-germinal-vesicle-is-a-finely-gran-reference-letters-bid-blastodisccc-cloacal-chalazacp-central-protoplasmest-c-image336815946.htmlRM2AFY84X–. Journal of morphology. tinguished. The most obvious are the largedeutoplasmic spherules which form a cap between the germinalvesicle and the vegetative pole; this may be called the spherulecap (figs. 1, 9, 11, 13, sc). The periphery of the oocyte is freefrom these spherules. They are highly refractive in fresh mate-rial and appear yellow by reflected light. They stain intenselywith Sudan iii and are lipoid in character. At the center of thespherule cap, lying close to the germinal vesicle is a finely gran- Reference letters bid., blastodiscC.C., cloacal chalazac.p., central protoplasmest., c
. Fresh-water biology. Freshwater biology. PARASITIC ROUNDWORMS 541. 21 (i8) No conical spicules behind cloacal aperture; caudal lobes cylin- drical Gordius platycephalus Montgomery 1898. For female of this species consult 30 in this key. Male up to 216 mm. long, 1 mm. broad. The flattened anterior end is characteristic, but Montgomery found one specimen apparently of G. densareolatus with this feature and could explain it only as a hybrid form. Canada, Pennsyl- vania, and Guatemala. Fig. 842. Gordius platycephalus J; head and tail in ventral aspect. Magnified. (After Montgomery.) 22 (11) Caud Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fresh-water-biology-freshwater-biology-parasitic-roundworms-541-21-i8-no-conical-spicules-behind-cloacal-aperture-caudal-lobes-cylin-drical-gordius-platycephalus-montgomery-1898-for-female-of-this-species-consult-30-in-this-key-male-up-to-216-mm-long-1-mm-broad-the-flattened-anterior-end-is-characteristic-but-montgomery-found-one-specimen-apparently-of-g-densareolatus-with-this-feature-and-could-explain-it-only-as-a-hybrid-form-canada-pennsyl-vania-and-guatemala-fig-842-gordius-platycephalus-j-head-and-tail-in-ventral-aspect-magnified-after-montgomery-22-11-caud-image216351468.htmlRMPFYJE4–. Fresh-water biology. Freshwater biology. PARASITIC ROUNDWORMS 541. 21 (i8) No conical spicules behind cloacal aperture; caudal lobes cylin- drical Gordius platycephalus Montgomery 1898. For female of this species consult 30 in this key. Male up to 216 mm. long, 1 mm. broad. The flattened anterior end is characteristic, but Montgomery found one specimen apparently of G. densareolatus with this feature and could explain it only as a hybrid form. Canada, Pennsyl- vania, and Guatemala. Fig. 842. Gordius platycephalus J; head and tail in ventral aspect. Magnified. (After Montgomery.) 22 (11) Caud
green tree python / morelia viridis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/green-tree-python-morelia-viridis-image186544211.htmlRMMRDR17–green tree python / morelia viridis
The evolution of man: a popular exposition of the principal points of human ontogeny and phylogenyFrom the German of Ernst Haeckel . nimals the urinary and genital organs always openoriginally into the lower part of the rectum, which thusforms a cloaca (p. 845); but among Mammals the cloacais permanent only in the Beaked Animals (OrnitJiostoma),which have, on this account, been called Cloacal Animals{Monotrema, Fig. 827, cl). In all other Mammals a lateralpartition wall develops in the cloaca (in the human embryoabout the middle of the third month), by which the latteris separated into two cav Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-evolution-of-man-a-popular-exposition-of-the-principal-points-of-human-ontogeny-and-phylogenyfrom-the-german-of-ernst-haeckel-nimals-the-urinary-and-genital-organs-always-openoriginally-into-the-lower-part-of-the-rectum-which-thusforms-a-cloaca-p-845-but-among-mammals-the-cloacais-permanent-only-in-the-beaked-animals-ornitjiostomawhich-have-on-this-account-been-called-cloacal-animalsmonotrema-fig-827-cl-in-all-other-mammals-a-lateralpartition-wall-develops-in-the-cloaca-in-the-human-embryoabout-the-middle-of-the-third-month-by-which-the-latteris-separated-into-two-cav-image339962002.htmlRM2AN2H02–The evolution of man: a popular exposition of the principal points of human ontogeny and phylogenyFrom the German of Ernst Haeckel . nimals the urinary and genital organs always openoriginally into the lower part of the rectum, which thusforms a cloaca (p. 845); but among Mammals the cloacais permanent only in the Beaked Animals (OrnitJiostoma),which have, on this account, been called Cloacal Animals{Monotrema, Fig. 827, cl). In all other Mammals a lateralpartition wall develops in the cloaca (in the human embryoabout the middle of the third month), by which the latteris separated into two cav
. Fresh-water biology. Freshwater biology. Gordius densareolatus Montgomery 1898. For female of this species consult 29 in this key. Male up to 290 mm. long, I.I mm. broad. Bodyrobust. Conical spines on ventral surface of caudal lobes. Color deep chocolate, with black ring about cloacal aperture. Wyoming, Montana, California. Fig. 840. Gordius densareolatus $. Ventral view of posterior end. (After Montgomery.) Magnified. 20 (19) Caudal lobes nearly cylindrical. Gordius longareolatus Montgomery 1898. Female of this species unknown. Male 115 mm. long, 0.5 mm. broad. Longitudi- nally arranged elo Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fresh-water-biology-freshwater-biology-gordius-densareolatus-montgomery-1898-for-female-of-this-species-consult-29-in-this-key-male-up-to-290-mm-long-ii-mm-broad-bodyrobust-conical-spines-on-ventral-surface-of-caudal-lobes-color-deep-chocolate-with-black-ring-about-cloacal-aperture-wyoming-montana-california-fig-840-gordius-densareolatus-ventral-view-of-posterior-end-after-montgomery-magnified-20-19-caudal-lobes-nearly-cylindrical-gordius-longareolatus-montgomery-1898-female-of-this-species-unknown-male-115-mm-long-05-mm-broad-longitudi-nally-arranged-elo-image216351470.htmlRMPFYJE6–. Fresh-water biology. Freshwater biology. Gordius densareolatus Montgomery 1898. For female of this species consult 29 in this key. Male up to 290 mm. long, I.I mm. broad. Bodyrobust. Conical spines on ventral surface of caudal lobes. Color deep chocolate, with black ring about cloacal aperture. Wyoming, Montana, California. Fig. 840. Gordius densareolatus $. Ventral view of posterior end. (After Montgomery.) Magnified. 20 (19) Caudal lobes nearly cylindrical. Gordius longareolatus Montgomery 1898. Female of this species unknown. Male 115 mm. long, 0.5 mm. broad. Longitudi- nally arranged elo
green tree python / morelia viridis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/green-tree-python-morelia-viridis-image186544162.htmlRMMRDPYE–green tree python / morelia viridis
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fis. 3.—Ventral surface of tail. {Johns Hopkins Bulletin.). Fig. 6.—Showing contracted tail. {Johns Hopkins Bullelin.) in the ancestral stock from which the human species has descended. They form a true external tail. , , . , ^ ,. The coccyx is not a stable group of bones but is on the way to disappearance. This is vividly shown by the reduction of the typical external tail of the humanembryo so that by the time adult Ufe is reached there is ordinarily no trace of the ex-ternal ta Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fis-3ventral-surface-of-tail-johns-hopkins-bulletin-fig-6showing-contracted-tail-johns-hopkins-bullelin-in-the-ancestral-stock-from-which-the-human-species-has-descended-they-form-a-true-external-tail-the-coccyx-is-not-a-stable-group-of-bones-but-is-on-the-way-to-disappearance-this-is-vividly-shown-by-the-reduction-of-the-typical-external-tail-of-the-humanembryo-so-that-by-the-time-adult-ufe-is-reached-there-is-ordinarily-no-trace-of-the-ex-ternal-ta-image340137786.htmlRM2ANAH62–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fis. 3.—Ventral surface of tail. {Johns Hopkins Bulletin.). Fig. 6.—Showing contracted tail. {Johns Hopkins Bullelin.) in the ancestral stock from which the human species has descended. They form a true external tail. , , . , ^ ,. The coccyx is not a stable group of bones but is on the way to disappearance. This is vividly shown by the reduction of the typical external tail of the humanembryo so that by the time adult Ufe is reached there is ordinarily no trace of the ex-ternal ta
. Fresh-water biology. Freshwater biology. 21 (i8) No conical spicules behind cloacal aperture; caudal lobes cylin- drical Gordius platycephalus Montgomery 1898. For female of this species consult 30 in this key. Male up to 216 mm. long, 1 mm. broad. The flattened anterior end is characteristic, but Montgomery found one specimen apparently of G. densareolatus with this feature and could explain it only as a hybrid form. Canada, Pennsyl- vania, and Guatemala. Fig. 842. Gordius platycephalus J; head and tail in ventral aspect. Magnified. (After Montgomery.) 22 (11) Caudal end straight, not enlar Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fresh-water-biology-freshwater-biology-21-i8-no-conical-spicules-behind-cloacal-aperture-caudal-lobes-cylin-drical-gordius-platycephalus-montgomery-1898-for-female-of-this-species-consult-30-in-this-key-male-up-to-216-mm-long-1-mm-broad-the-flattened-anterior-end-is-characteristic-but-montgomery-found-one-specimen-apparently-of-g-densareolatus-with-this-feature-and-could-explain-it-only-as-a-hybrid-form-canada-pennsyl-vania-and-guatemala-fig-842-gordius-platycephalus-j-head-and-tail-in-ventral-aspect-magnified-after-montgomery-22-11-caudal-end-straight-not-enlar-image216351465.htmlRMPFYJE1–. Fresh-water biology. Freshwater biology. 21 (i8) No conical spicules behind cloacal aperture; caudal lobes cylin- drical Gordius platycephalus Montgomery 1898. For female of this species consult 30 in this key. Male up to 216 mm. long, 1 mm. broad. The flattened anterior end is characteristic, but Montgomery found one specimen apparently of G. densareolatus with this feature and could explain it only as a hybrid form. Canada, Pennsyl- vania, and Guatemala. Fig. 842. Gordius platycephalus J; head and tail in ventral aspect. Magnified. (After Montgomery.) 22 (11) Caudal end straight, not enlar
green tree python / morelia viridis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/green-tree-python-morelia-viridis-image186544186.htmlRMMRDR0A–green tree python / morelia viridis
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 25.—Lymphatics of the blad-der in the new-born infant (Cuneo-Marcille). a. External iliac gland (externalchain). b. External iliac gland(middle cham). c. External iliacgland (internal chain), d. Deep in-guinal glands. e. Left juxta-aorticgland. /. Gland of the promontory.§. Lateral vesical glands, h. Prae-vesical glands. Fig. 27.—Lymphatics of the pros-tate (Cuneo and Marcille).. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fig-25lymphatics-of-the-blad-der-in-the-new-born-infant-cuneo-marcille-a-external-iliac-gland-externalchain-b-external-iliac-glandmiddle-cham-c-external-iliacgland-internal-chain-d-deep-in-guinal-glands-e-left-juxta-aorticgland-gland-of-the-promontory-lateral-vesical-glands-h-prae-vesical-glands-fig-27lymphatics-of-the-pros-tate-cuneo-and-marcille-image340142374.htmlRM2ANAR1X–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 25.—Lymphatics of the blad-der in the new-born infant (Cuneo-Marcille). a. External iliac gland (externalchain). b. External iliac gland(middle cham). c. External iliacgland (internal chain), d. Deep in-guinal glands. e. Left juxta-aorticgland. /. Gland of the promontory.§. Lateral vesical glands, h. Prae-vesical glands. Fig. 27.—Lymphatics of the pros-tate (Cuneo and Marcille)..
![. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. 208. Fni. 209. Fig. 208.âAlimentaky Caxal of Perch. Oe, oesophagus ; M, stomach ; t, cajcal process of latter; PâP, short pyloric region ; Ap, pyloric cseca ; MI), small intestine ; SD, rectum ; A, anus. FiH 209.âAlimentary Canal and Appendages of Protoptems annectev,i. (After W. N. Parker.) as, oesophagus; st, "stomach"; py.i; pj'loric valve; h.ent, bursa entiana (anterior portion of intestine); sp. i; spiral valve ; re, rectum ; d, cloaca ; rl.c, cloacal ciEcum ; r, vent; a.p, abdominal pore; ood, base Stock Photo](https://c8.alamy.com/comp/PG2MF3/elements-of-the-comparative-anatomy-of-vertebrates-anatomy-comparative-fig-208-fni-209-fig-208alimentaky-caxal-of-perch-oe-oesophagus-m-stomach-t-cajcal-process-of-latter-pp-short-pyloric-region-ap-pyloric-cseca-mi-small-intestine-sd-rectum-a-anus-fih-209alimentary-canal-and-appendages-of-protoptems-annectevi-after-w-n-parker-as-oesophagus-st-quotstomachquot-pyi-pjloric-valve-hent-bursa-entiana-anterior-portion-of-intestine-sp-i-spiral-valve-re-rectum-d-cloaca-rlc-cloacal-ciecum-r-vent-ap-abdominal-pore-ood-base-PG2MF3.jpg ". Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. 208. Fni. 209. Fig. 208.âAlimentaky Caxal of Perch. Oe, oesophagus ; M, stomach ; t, cajcal process of latter; PâP, short pyloric region ; Ap, pyloric cseca ; MI), small intestine ; SD, rectum ; A, anus. FiH 209.âAlimentary Canal and Appendages of Protoptems annectev,i. (After W. N. Parker.) as, oesophagus; st, "stomach"; py.i; pj'loric valve; h.ent, bursa entiana (anterior portion of intestine); sp. i; spiral valve ; re, rectum ; d, cloaca ; rl.c, cloacal ciEcum ; r, vent; a.p, abdominal pore; ood, base Stock Photo")
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. 208. Fni. 209. Fig. 208.âAlimentaky Caxal of Perch. Oe, oesophagus ; M, stomach ; t, cajcal process of latter; PâP, short pyloric region ; Ap, pyloric cseca ; MI), small intestine ; SD, rectum ; A, anus. FiH 209.âAlimentary Canal and Appendages of Protoptems annectev,i. (After W. N. Parker.) as, oesophagus; st, "stomach"; py.i; pj'loric valve; h.ent, bursa entiana (anterior portion of intestine); sp. i; spiral valve ; re, rectum ; d, cloaca ; rl.c, cloacal ciEcum ; r, vent; a.p, abdominal pore; ood, base Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elements-of-the-comparative-anatomy-of-vertebrates-anatomy-comparative-fig-208-fni-209-fig-208alimentaky-caxal-of-perch-oe-oesophagus-m-stomach-t-cajcal-process-of-latter-pp-short-pyloric-region-ap-pyloric-cseca-mi-small-intestine-sd-rectum-a-anus-fih-209alimentary-canal-and-appendages-of-protoptems-annectevi-after-w-n-parker-as-oesophagus-st-quotstomachquot-pyi-pjloric-valve-hent-bursa-entiana-anterior-portion-of-intestine-sp-i-spiral-valve-re-rectum-d-cloaca-rlc-cloacal-ciecum-r-vent-ap-abdominal-pore-ood-base-image216418919.htmlRMPG2MF3–. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. Fig. 208. Fni. 209. Fig. 208.âAlimentaky Caxal of Perch. Oe, oesophagus ; M, stomach ; t, cajcal process of latter; PâP, short pyloric region ; Ap, pyloric cseca ; MI), small intestine ; SD, rectum ; A, anus. FiH 209.âAlimentary Canal and Appendages of Protoptems annectev,i. (After W. N. Parker.) as, oesophagus; st, "stomach"; py.i; pj'loric valve; h.ent, bursa entiana (anterior portion of intestine); sp. i; spiral valve ; re, rectum ; d, cloaca ; rl.c, cloacal ciEcum ; r, vent; a.p, abdominal pore; ood, base
green tree python / morelia viridis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/green-tree-python-morelia-viridis-image186544174.htmlRMMRDPYX–green tree python / morelia viridis
. Outlines of zoology. , exterior through the commonterminal chamber or cloaca. An abdominal pore opens oneach side of the cloacal aperture, and puts the body cavityin direct communication with the exterior. Exceptingmouth cavity and cloaca, the gut is lined by endoderm. Respiratory system.—The first apparent gill-clefts—thespiracles—open dorsally behind the eyes. Each containsa rudimentary gill on the anterior wall, supported by a 544 P2SCES—FISHES. spiracular cartilage. Through the spiracles water may enteror leave the mouth. There are other five pairs of gill-clefts, separated by com-plete Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/outlines-of-zoology-exterior-through-the-commonterminal-chamber-or-cloaca-an-abdominal-pore-opens-oneach-side-of-the-cloacal-aperture-and-puts-the-body-cavityin-direct-communication-with-the-exterior-exceptingmouth-cavity-and-cloaca-the-gut-is-lined-by-endoderm-respiratory-systemthe-first-apparent-gill-cleftsthespiraclesopen-dorsally-behind-the-eyes-each-containsa-rudimentary-gill-on-the-anterior-wall-supported-by-a-544-p2scesfishes-spiracular-cartilage-through-the-spiracles-water-may-enteror-leave-the-mouth-there-are-other-five-pairs-of-gill-clefts-separated-by-com-plete-image337128246.htmlRM2AGDEEE–. Outlines of zoology. , exterior through the commonterminal chamber or cloaca. An abdominal pore opens oneach side of the cloacal aperture, and puts the body cavityin direct communication with the exterior. Exceptingmouth cavity and cloaca, the gut is lined by endoderm. Respiratory system.—The first apparent gill-clefts—thespiracles—open dorsally behind the eyes. Each containsa rudimentary gill on the anterior wall, supported by a 544 P2SCES—FISHES. spiracular cartilage. Through the spiracles water may enteror leave the mouth. There are other five pairs of gill-clefts, separated by com-plete
. Current herpetology. Reptiles; Herpetology. 32 Current Herpetol. 22(1) 2003. Fig. 3. Dorsal (A), ventral (B) and lateral (C) views of head, and ventral view of cloacal region (D) in the holotype of Tropidophorus baconi sp. nov. (MZB.Lace 3789). Bar equals 5 mm. Other congeneric species except T. grayi by having a divided frontonasal, parietals sepa- rated from each other, lateral body scales directed obliquely upw^ard (Fig. 4), three preanals, postanal pores in adult males, and single keels on dorsal body and tail scales with marked development of the latter to make the tail surface more or Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/current-herpetology-reptiles-herpetology-32-current-herpetol-221-2003-fig-3-dorsal-a-ventral-b-and-lateral-c-views-of-head-and-ventral-view-of-cloacal-region-d-in-the-holotype-of-tropidophorus-baconi-sp-nov-mzblace-3789-bar-equals-5-mm-other-congeneric-species-except-t-grayi-by-having-a-divided-frontonasal-parietals-sepa-rated-from-each-other-lateral-body-scales-directed-obliquely-upward-fig-4-three-preanals-postanal-pores-in-adult-males-and-single-keels-on-dorsal-body-and-tail-scales-with-marked-development-of-the-latter-to-make-the-tail-surface-more-or-image216347926.htmlRMPFYDYJ–. Current herpetology. Reptiles; Herpetology. 32 Current Herpetol. 22(1) 2003. Fig. 3. Dorsal (A), ventral (B) and lateral (C) views of head, and ventral view of cloacal region (D) in the holotype of Tropidophorus baconi sp. nov. (MZB.Lace 3789). Bar equals 5 mm. Other congeneric species except T. grayi by having a divided frontonasal, parietals sepa- rated from each other, lateral body scales directed obliquely upw^ard (Fig. 4), three preanals, postanal pores in adult males, and single keels on dorsal body and tail scales with marked development of the latter to make the tail surface more or
green tree python / morelia viridis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/green-tree-python-morelia-viridis-image186544180.htmlRMMRDR04–green tree python / morelia viridis
. Outlines of zoology. ttained. Lungs are always developed in theadults. ? It is doubtful whetherthey are directly comparable withthe swim-bladder. The heart has three chambers. Thereis an inferior vena cava, and pairedposterior cardinals are seen only inthe larva. The limbs have digits. There are no fin-rays. There are two occipital condyles. Acolumella runs from the tympanumto a fenestra ovalis in the earcapsule. There is no exoskeleton, except in afew cases, and in extinct forms. There are posterior nares opening intothe cavity of the mouth. The cloacal bladder seems to be thehomologue of t Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/outlines-of-zoology-ttained-lungs-are-always-developed-in-theadults-it-is-doubtful-whetherthey-are-directly-comparable-withthe-swim-bladder-the-heart-has-three-chambers-thereis-an-inferior-vena-cava-and-pairedposterior-cardinals-are-seen-only-inthe-larva-the-limbs-have-digits-there-are-no-fin-rays-there-are-two-occipital-condyles-acolumella-runs-from-the-tympanumto-a-fenestra-ovalis-in-the-earcapsule-there-is-no-exoskeleton-except-in-afew-cases-and-in-extinct-forms-there-are-posterior-nares-opening-intothe-cavity-of-the-mouth-the-cloacal-bladder-seems-to-be-thehomologue-of-t-image337120868.htmlRM2AGD530–. Outlines of zoology. ttained. Lungs are always developed in theadults. ? It is doubtful whetherthey are directly comparable withthe swim-bladder. The heart has three chambers. Thereis an inferior vena cava, and pairedposterior cardinals are seen only inthe larva. The limbs have digits. There are no fin-rays. There are two occipital condyles. Acolumella runs from the tympanumto a fenestra ovalis in the earcapsule. There is no exoskeleton, except in afew cases, and in extinct forms. There are posterior nares opening intothe cavity of the mouth. The cloacal bladder seems to be thehomologue of t
. Fresh-water biology. Freshwater biology. S40 FRESH-WATER BIOLOGY. 13(12) No cuticular ridge anterior and lateral to cloacal pore 14 14 (15) Behind cloacal pore sharp V-shaped ridge. Gordius villoti Rosa 1882. For female of this species consult 23 in this key. This species was described by Montgomery as G. aguaUcus. Several subspecies have been distin- guished. In the typical form the cuticula is marked with large light spots. Male up to 655 mm. long, 1.3 mm. broad, equal in diameter throughout; both ends obtuse; no tirue areoles present. From Canada, New England, New York to South Carolina; Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fresh-water-biology-freshwater-biology-s40-fresh-water-biology-1312-no-cuticular-ridge-anterior-and-lateral-to-cloacal-pore-14-14-15-behind-cloacal-pore-sharp-v-shaped-ridge-gordius-villoti-rosa-1882-for-female-of-this-species-consult-23-in-this-key-this-species-was-described-by-montgomery-as-g-aguaucus-several-subspecies-have-been-distin-guished-in-the-typical-form-the-cuticula-is-marked-with-large-light-spots-male-up-to-655-mm-long-13-mm-broad-equal-in-diameter-throughout-both-ends-obtuse-no-tirue-areoles-present-from-canada-new-england-new-york-to-south-carolina-image216351489.htmlRMPFYJEW–. Fresh-water biology. Freshwater biology. S40 FRESH-WATER BIOLOGY. 13(12) No cuticular ridge anterior and lateral to cloacal pore 14 14 (15) Behind cloacal pore sharp V-shaped ridge. Gordius villoti Rosa 1882. For female of this species consult 23 in this key. This species was described by Montgomery as G. aguaUcus. Several subspecies have been distin- guished. In the typical form the cuticula is marked with large light spots. Male up to 655 mm. long, 1.3 mm. broad, equal in diameter throughout; both ends obtuse; no tirue areoles present. From Canada, New England, New York to South Carolina;
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Cloacal. Plate 2—Evolution of the Cloaca.Page Ten about the end of the fifth week. I here is, however, a short time during which thehuman embryo possesses a true cloaca. We have spoken only of the walls of the cloaca. Of course all other structures suchas blood-vessels, nerves, and muscles are involved in these transformations, so that inthe study of the cloacal region of the adult human we must bear in mind that all thestructures have an ancient pedigree. For example the old-time M Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-cloacal-plate-2evolution-of-the-cloacapage-ten-about-the-end-of-the-fifth-week-i-here-is-however-a-short-time-during-which-thehuman-embryo-possesses-a-true-cloaca-we-have-spoken-only-of-the-walls-of-the-cloaca-of-course-all-other-structures-suchas-blood-vessels-nerves-and-muscles-are-involved-in-these-transformations-so-that-inthe-study-of-the-cloacal-region-of-the-adult-human-we-must-bear-in-mind-that-all-thestructures-have-an-ancient-pedigree-for-example-the-old-time-m-image340139804.htmlRM2ANAKP4–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Cloacal. Plate 2—Evolution of the Cloaca.Page Ten about the end of the fifth week. I here is, however, a short time during which thehuman embryo possesses a true cloaca. We have spoken only of the walls of the cloaca. Of course all other structures suchas blood-vessels, nerves, and muscles are involved in these transformations, so that inthe study of the cloacal region of the adult human we must bear in mind that all thestructures have an ancient pedigree. For example the old-time M
. Fresh-water biology. Freshwater biology. 13(12) No cuticular ridge anterior and lateral to cloacal pore 14 14 (15) Behind cloacal pore sharp V-shaped ridge. Gordius villoti Rosa 1882. For female of this species consult 23 in this key. This species was described by Montgomery as G. aguaUcus. Several subspecies have been distin- guished. In the typical form the cuticula is marked with large light spots. Male up to 655 mm. long, 1.3 mm. broad, equal in diameter throughout; both ends obtuse; no tirue areoles present. From Canada, New England, New York to South Carolina; westward to South Dakota, Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fresh-water-biology-freshwater-biology-1312-no-cuticular-ridge-anterior-and-lateral-to-cloacal-pore-14-14-15-behind-cloacal-pore-sharp-v-shaped-ridge-gordius-villoti-rosa-1882-for-female-of-this-species-consult-23-in-this-key-this-species-was-described-by-montgomery-as-g-aguaucus-several-subspecies-have-been-distin-guished-in-the-typical-form-the-cuticula-is-marked-with-large-light-spots-male-up-to-655-mm-long-13-mm-broad-equal-in-diameter-throughout-both-ends-obtuse-no-tirue-areoles-present-from-canada-new-england-new-york-to-south-carolina-westward-to-south-dakota-image216351476.htmlRMPFYJEC–. Fresh-water biology. Freshwater biology. 13(12) No cuticular ridge anterior and lateral to cloacal pore 14 14 (15) Behind cloacal pore sharp V-shaped ridge. Gordius villoti Rosa 1882. For female of this species consult 23 in this key. This species was described by Montgomery as G. aguaUcus. Several subspecies have been distin- guished. In the typical form the cuticula is marked with large light spots. Male up to 655 mm. long, 1.3 mm. broad, equal in diameter throughout; both ends obtuse; no tirue areoles present. From Canada, New England, New York to South Carolina; westward to South Dakota,
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . -Mijl Fig. 13.—Superficial dissection of the perineum (Kelley), f y. Fig. 14.—Deep dissection of the perineum (Kelley).Page Seventeen fellow on the opposite side, with the superficial perineal branch and with the interior hemor-rhoidal arteries. It supplies the sphincter vaginae, and the anterior fibers of the levator ani. The nerve supply is from the perineal branches of the pudic nerve and its functionis to assist the deep transverse perineal in fixing the central tendon of the p Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-mijl-fig-13superficial-dissection-of-the-perineum-kelley-f-y-fig-14deep-dissection-of-the-perineum-kelleypage-seventeen-fellow-on-the-opposite-side-with-the-superficial-perineal-branch-and-with-the-interior-hemor-rhoidal-arteries-it-supplies-the-sphincter-vaginae-and-the-anterior-fibers-of-the-levator-ani-the-nerve-supply-is-from-the-perineal-branches-of-the-pudic-nerve-and-its-functionis-to-assist-the-deep-transverse-perineal-in-fixing-the-central-tendon-of-the-p-image340131928.htmlRM2ANA9MT–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . -Mijl Fig. 13.—Superficial dissection of the perineum (Kelley), f y. Fig. 14.—Deep dissection of the perineum (Kelley).Page Seventeen fellow on the opposite side, with the superficial perineal branch and with the interior hemor-rhoidal arteries. It supplies the sphincter vaginae, and the anterior fibers of the levator ani. The nerve supply is from the perineal branches of the pudic nerve and its functionis to assist the deep transverse perineal in fixing the central tendon of the p
![. A manual of zoology. Zoology. "^^%?5,'( ( , Fig. 159. Fig. 160. Fig. 15Q.—Ascon stage o£ 5yfa«(/ru (after Maas). c, entoderm; m, mcseclodcrm; o, osculuni; p, ]iores. Fig. iOo.—Section of vall of Sycuiuh'ti ra[>ho}uis (after Scltulze). c, epithelium; en, coliared llagellale cells; m, mesodernt ith eonneelive-lissue cells; 0, eggs; st^ calcareous spicules.. Fig. 161.—Section of Pldh'im (afler F. F. Seliul'eV f, canals leading from ampull-E to cloacal tubes; c, anipull;e; (/, afferent canals; o, oscukun. the surface. On the other hand, there is a distinctly differentiated ento- derm Stock Photo](https://c8.alamy.com/comp/PG3PCY/a-manual-of-zoology-zoology-quot5-fig-159-fig-160-fig-15qascon-stage-o-5yfaru-after-maas-c-entoderm-m-mcseclodcrm-o-osculuni-p-iores-fig-ioosection-of-vall-of-sycuiuhti-ra-gthouis-after-scltulze-c-epithelium-en-coliared-llagellale-cells-m-mesodernt-ith-eonneelive-lissue-cells-0-eggs-st-calcareous-spicules-fig-161section-of-pldhim-afler-f-f-seliulev-f-canals-leading-from-ampull-e-to-cloacal-tubes-c-anipulle-afferent-canals-o-oscukun-the-surface-on-the-other-hand-there-is-a-distinctly-differentiated-ento-derm-PG3PCY.jpg ". A manual of zoology. Zoology. "^^%?5,'( ( , Fig. 159. Fig. 160. Fig. 15Q.—Ascon stage o£ 5yfa«(/ru (after Maas). c, entoderm; m, mcseclodcrm; o, osculuni; p, ]iores. Fig. iOo.—Section of vall of Sycuiuh'ti ra[>ho}uis (after Scltulze). c, epithelium; en, coliared llagellale cells; m, mesodernt ith eonneelive-lissue cells; 0, eggs; st^ calcareous spicules.. Fig. 161.—Section of Pldh'im (afler F. F. Seliul'eV f, canals leading from ampull-E to cloacal tubes; c, anipull;e; (/, afferent canals; o, oscukun. the surface. On the other hand, there is a distinctly differentiated ento- derm Stock Photo")
. A manual of zoology. Zoology. "^^%?5,'( ( , Fig. 159. Fig. 160. Fig. 15Q.—Ascon stage o£ 5yfa«(/ru (after Maas). c, entoderm; m, mcseclodcrm; o, osculuni; p, ]iores. Fig. iOo.—Section of vall of Sycuiuh'ti ra[>ho}uis (after Scltulze). c, epithelium; en, coliared llagellale cells; m, mesodernt ith eonneelive-lissue cells; 0, eggs; st^ calcareous spicules.. Fig. 161.—Section of Pldh'im (afler F. F. Seliul'eV f, canals leading from ampull-E to cloacal tubes; c, anipull;e; (/, afferent canals; o, oscukun. the surface. On the other hand, there is a distinctly differentiated ento- derm Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-zoology-quot5-fig-159-fig-160-fig-15qascon-stage-o-5yfaru-after-maas-c-entoderm-m-mcseclodcrm-o-osculuni-p-iores-fig-ioosection-of-vall-of-sycuiuhti-ra-gthouis-after-scltulze-c-epithelium-en-coliared-llagellale-cells-m-mesodernt-ith-eonneelive-lissue-cells-0-eggs-st-calcareous-spicules-fig-161section-of-pldhim-afler-f-f-seliulev-f-canals-leading-from-ampull-e-to-cloacal-tubes-c-anipulle-afferent-canals-o-oscukun-the-surface-on-the-other-hand-there-is-a-distinctly-differentiated-ento-derm-image216442379.htmlRMPG3PCY–. A manual of zoology. Zoology. "^^%?5,'( ( , Fig. 159. Fig. 160. Fig. 15Q.—Ascon stage o£ 5yfa«(/ru (after Maas). c, entoderm; m, mcseclodcrm; o, osculuni; p, ]iores. Fig. iOo.—Section of vall of Sycuiuh'ti ra[>ho}uis (after Scltulze). c, epithelium; en, coliared llagellale cells; m, mesodernt ith eonneelive-lissue cells; 0, eggs; st^ calcareous spicules.. Fig. 161.—Section of Pldh'im (afler F. F. Seliul'eV f, canals leading from ampull-E to cloacal tubes; c, anipull;e; (/, afferent canals; o, oscukun. the surface. On the other hand, there is a distinctly differentiated ento- derm
Gynaecology for students and practitioners . prominence of the tail so that the ectoderm andentoderm are here in immediate contact. These layers form a ventralboundary and constitute the cloacal membrane or plate (see Fig. 53, Cl.M.). Quite early in development thecoelomic cavity protrudes downwardsas a hollow spur between allantoicand gut (see Figs. 53, 58 and 59, C.)-This depression carries an invest-ment of mesoblast before it, which bydipping into the cloaca forms theurorectal septum {see Fig. 58, S.Ur.),Later, the cloacal membrane in themedian plane becomes depressed soas to form the ecto Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynaecology-for-students-and-practitioners-prominence-of-the-tail-so-that-the-ectoderm-andentoderm-are-here-in-immediate-contact-these-layers-form-a-ventralboundary-and-constitute-the-cloacal-membrane-or-plate-see-fig-53-clm-quite-early-in-development-thecoelomic-cavity-protrudes-downwardsas-a-hollow-spur-between-allantoicand-gut-see-figs-53-58-and-59-c-this-depression-carries-an-invest-ment-of-mesoblast-before-it-which-bydipping-into-the-cloaca-forms-theurorectal-septum-see-fig-58-surlater-the-cloacal-membrane-in-themedian-plane-becomes-depressed-soas-to-form-the-ecto-image340083482.htmlRM2AN83XJ–Gynaecology for students and practitioners . prominence of the tail so that the ectoderm andentoderm are here in immediate contact. These layers form a ventralboundary and constitute the cloacal membrane or plate (see Fig. 53, Cl.M.). Quite early in development thecoelomic cavity protrudes downwardsas a hollow spur between allantoicand gut (see Figs. 53, 58 and 59, C.)-This depression carries an invest-ment of mesoblast before it, which bydipping into the cloaca forms theurorectal septum {see Fig. 58, S.Ur.),Later, the cloacal membrane in themedian plane becomes depressed soas to form the ecto
. Current herpetology. Reptiles; Herpetology. D. Fig. 3. Dorsal (A), lateral (B) and ventral (C) views of head, ventral view of cloacal region (D), and left forelimb (E) of the holotype of Sirenoscin- cus yamagishii sp. nov. (KUZ R50922). Abbrevia- tions are: 1°, primary temporal; 2°, secondary tem- poral; cl, claw, cs, chinshield; eg, ear groove; ey, eye; f, frontal; fn, frontonasal; i, interparietal; il, inflala- bial; 1, loreal; m, mental; n, nuchal; na, nasal; pa, parietal; pm, postmental; po, preocular; oc, ocular; r, rostral; si, supralabial; sn: supranasal; so, supraoc- ular. by one sca Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/current-herpetology-reptiles-herpetology-d-fig-3-dorsal-a-lateral-b-and-ventral-c-views-of-head-ventral-view-of-cloacal-region-d-and-left-forelimb-e-of-the-holotype-of-sirenoscin-cus-yamagishii-sp-nov-kuz-r50922-abbrevia-tions-are-1-primary-temporal-2-secondary-tem-poral-cl-claw-cs-chinshield-eg-ear-groove-ey-eye-f-frontal-fn-frontonasal-i-interparietal-il-inflala-bial-1-loreal-m-mental-n-nuchal-na-nasal-pa-parietal-pm-postmental-po-preocular-oc-ocular-r-rostral-si-supralabial-sn-supranasal-so-supraoc-ular-by-one-sca-image216347964.htmlRMPFYE10–. Current herpetology. Reptiles; Herpetology. D. Fig. 3. Dorsal (A), lateral (B) and ventral (C) views of head, ventral view of cloacal region (D), and left forelimb (E) of the holotype of Sirenoscin- cus yamagishii sp. nov. (KUZ R50922). Abbrevia- tions are: 1°, primary temporal; 2°, secondary tem- poral; cl, claw, cs, chinshield; eg, ear groove; ey, eye; f, frontal; fn, frontonasal; i, interparietal; il, inflala- bial; 1, loreal; m, mental; n, nuchal; na, nasal; pa, parietal; pm, postmental; po, preocular; oc, ocular; r, rostral; si, supralabial; sn: supranasal; so, supraoc- ular. by one sca
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 7.—Front-al section of tail,showng the ar-rangement of themuscle fibers (M).a. Place from%vhlch the cross-section represent-ed in Fig. 5 wastaken. X3.. Fig. 8.—Cross-section throughthe middle of the tail (Fig. 4,a). M, muscle; M, degenerat-ing muscle; A, artery; A^,nerve; L is placed on the leftand R on the right of theappendage. X 9. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fig-7front-al-section-of-tailshowng-the-ar-rangement-of-themuscle-fibers-ma-place-fromvhlch-the-cross-section-represent-ed-in-fig-5-wastaken-x3-fig-8cross-section-throughthe-middle-of-the-tail-fig-4a-m-muscle-m-degenerat-ing-muscle-a-artery-anerve-l-is-placed-on-the-leftand-r-on-the-right-of-theappendage-x-9-image340137392.htmlRM2ANAGM0–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 7.—Front-al section of tail,showng the ar-rangement of themuscle fibers (M).a. Place from%vhlch the cross-section represent-ed in Fig. 5 wastaken. X3.. Fig. 8.—Cross-section throughthe middle of the tail (Fig. 4,a). M, muscle; M, degenerat-ing muscle; A, artery; A^,nerve; L is placed on the leftand R on the right of theappendage. X 9.
. Fresh-water biology. Freshwater biology. Fig. 8j6. Paragordiusvarius. o, lateral aspect of head. X 25. (Original.) 6. ventral view of tail. X 25. (Original.) c, dorsal view of tail (female). X 25. (After Stiles.) li, surface view of cuticula in male and e, in female. Highly magnified. (After Montgomery.) 10 (9) Anterior region not attenuated, tip usually rounded. GocfiiM.r Linnaeus 1758 . ii Caudal end bilobed in male; simple, not enlarged in female. II (22) Caudal end bilobed, spirally inrolled. (Males of Gordius) 12 12 (13) Arcuate cuticular ridge anterior and lateral to cloacal pore. Gord Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fresh-water-biology-freshwater-biology-fig-8j6-paragordiusvarius-o-lateral-aspect-of-head-x-25-original-6-ventral-view-of-tail-x-25-original-c-dorsal-view-of-tail-female-x-25-after-stiles-li-surface-view-of-cuticula-in-male-and-e-in-female-highly-magnified-after-montgomery-10-9-anterior-region-not-attenuated-tip-usually-rounded-gocfiimr-linnaeus-1758-ii-caudal-end-bilobed-in-male-simple-not-enlarged-in-female-ii-22-caudal-end-bilobed-spirally-inrolled-males-of-gordius-12-12-13-arcuate-cuticular-ridge-anterior-and-lateral-to-cloacal-pore-gord-image216351494.htmlRMPFYJF2–. Fresh-water biology. Freshwater biology. Fig. 8j6. Paragordiusvarius. o, lateral aspect of head. X 25. (Original.) 6. ventral view of tail. X 25. (Original.) c, dorsal view of tail (female). X 25. (After Stiles.) li, surface view of cuticula in male and e, in female. Highly magnified. (After Montgomery.) 10 (9) Anterior region not attenuated, tip usually rounded. GocfiiM.r Linnaeus 1758 . ii Caudal end bilobed in male; simple, not enlarged in female. II (22) Caudal end bilobed, spirally inrolled. (Males of Gordius) 12 12 (13) Arcuate cuticular ridge anterior and lateral to cloacal pore. Gord
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Cloacal. Plate 2—Evolution of the Cloaca.Page Ten about the end of the fifth week. I here is, however, a short time during which thehuman embryo possesses a true cloaca. We have spoken only of the walls of the cloaca. Of course all other structures suchas blood-vessels, nerves, and muscles are involved in these transformations, so that inthe study of the cloacal region of the adult human we must bear in mind that all thestructures have an ancient pedigree. For example the old-time M Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-cloacal-plate-2evolution-of-the-cloacapage-ten-about-the-end-of-the-fifth-week-i-here-is-however-a-short-time-during-which-thehuman-embryo-possesses-a-true-cloaca-we-have-spoken-only-of-the-walls-of-the-cloaca-of-course-all-other-structures-suchas-blood-vessels-nerves-and-muscles-are-involved-in-these-transformations-so-that-inthe-study-of-the-cloacal-region-of-the-adult-human-we-must-bear-in-mind-that-all-thestructures-have-an-ancient-pedigree-for-example-the-old-time-m-image340146403.htmlRM2ANB05R–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Cloacal. Plate 2—Evolution of the Cloaca.Page Ten about the end of the fifth week. I here is, however, a short time during which thehuman embryo possesses a true cloaca. We have spoken only of the walls of the cloaca. Of course all other structures suchas blood-vessels, nerves, and muscles are involved in these transformations, so that inthe study of the cloacal region of the adult human we must bear in mind that all thestructures have an ancient pedigree. For example the old-time M
. Current herpetology. Reptiles; Herpetology. RANDRIAMAHAZO & MORIâTHERMAL BIOLOGY OF MADAGASCAN LIZARD 57 1997. 20 25 30 35 Ambient temperature o m 50 r (D ^. 13 CO 40 CD Q. E 0 30 20 p 1998 o Male ⢠Female 0 X Juvenile ⢠o o 0 go*. »o ^â - â¢^Z' ^ â / 1 1 I I 20 25 30 35 Ambient temperature 40 Fig. 1. Relationship between ambient air temperature and cloacal body temperature in males, females, and juveniles of Opiums cuvieri cuvieri recorded in two study periods (1997 and 1998). 40 r E? 35 +-⢠CO ^. CD Q- E a 30 25 o Body temperature ⦠Ambient temperature d a § § a,b a a,b c Sep Oc Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/current-herpetology-reptiles-herpetology-randriamahazo-amp-morithermal-biology-of-madagascan-lizard-57-1997-20-25-30-35-ambient-temperature-o-m-50-r-d-13-co-40-cd-q-e-0-30-20-p-1998-o-male-female-0-x-juvenile-o-o-0-go-o-z-1-1-i-i-20-25-30-35-ambient-temperature-40-fig-1-relationship-between-ambient-air-temperature-and-cloacal-body-temperature-in-males-females-and-juveniles-of-opiums-cuvieri-cuvieri-recorded-in-two-study-periods-1997-and-1998-40-r-e-35-co-cd-q-e-a-30-25-o-body-temperature-ambient-temperature-d-a-ab-a-ab-c-sep-oc-image216347521.htmlRMPFYDD5–. Current herpetology. Reptiles; Herpetology. RANDRIAMAHAZO & MORIâTHERMAL BIOLOGY OF MADAGASCAN LIZARD 57 1997. 20 25 30 35 Ambient temperature o m 50 r (D ^. 13 CO 40 CD Q. E 0 30 20 p 1998 o Male ⢠Female 0 X Juvenile ⢠o o 0 go*. »o ^â - â¢^Z' ^ â / 1 1 I I 20 25 30 35 Ambient temperature 40 Fig. 1. Relationship between ambient air temperature and cloacal body temperature in males, females, and juveniles of Opiums cuvieri cuvieri recorded in two study periods (1997 and 1998). 40 r E? 35 +-⢠CO ^. CD Q- E a 30 25 o Body temperature ⦠Ambient temperature d a § § a,b a a,b c Sep Oc
![A treatise on zoology . .l, postero-lateral; p.v.l, posterior ventro-lateral; r, rostral; .r, orbital plate with orbit;cloacal aperture behind the median ventral plate. underlying layer of bony substance with large vascular spaces (Fig.166, D and H). The plates are frequently marked with superficialpolygonal areas, somewhat like those of the Cephalaspid armour(Traquair [466]). Fsammostcus, Ag. ; Devonian, Europe. Family Pteraspidae. The head and body are narrower, and thelateral flaps are but little developed (Fig. 171). The exact shape of thetail is unknown, but there is reason to believe tha Stock Photo](https://c8.alamy.com/comp/2AJBT1D/a-treatise-on-zoology-l-postero-lateral-pvl-posterior-ventro-lateral-r-rostral-r-orbital-plate-with-orbitcloacal-aperture-behind-the-median-ventral-plate-underlying-layer-of-bony-substance-with-large-vascular-spaces-fig166-d-and-h-the-plates-are-frequently-marked-with-superficialpolygonal-areas-somewhat-like-those-of-the-cephalaspid-armourtraquair-466-fsammostcus-ag-devonian-europe-family-pteraspidae-the-head-and-body-are-narrower-and-thelateral-flaps-are-but-little-developed-fig-171-the-exact-shape-of-thetail-is-unknown-but-there-is-reason-to-believe-tha-2AJBT1D.jpg "A treatise on zoology . .l, postero-lateral; p.v.l, posterior ventro-lateral; r, rostral; .r, orbital plate with orbit;cloacal aperture behind the median ventral plate. underlying layer of bony substance with large vascular spaces (Fig.166, D and H). The plates are frequently marked with superficialpolygonal areas, somewhat like those of the Cephalaspid armour(Traquair [466]). Fsammostcus, Ag. ; Devonian, Europe. Family Pteraspidae. The head and body are narrower, and thelateral flaps are but little developed (Fig. 171). The exact shape of thetail is unknown, but there is reason to believe tha Stock Photo")
A treatise on zoology . .l, postero-lateral; p.v.l, posterior ventro-lateral; r, rostral; .r, orbital plate with orbit;cloacal aperture behind the median ventral plate. underlying layer of bony substance with large vascular spaces (Fig.166, D and H). The plates are frequently marked with superficialpolygonal areas, somewhat like those of the Cephalaspid armour(Traquair [466]). Fsammostcus, Ag. ; Devonian, Europe. Family Pteraspidae. The head and body are narrower, and thelateral flaps are but little developed (Fig. 171). The exact shape of thetail is unknown, but there is reason to believe tha Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-treatise-on-zoology-l-postero-lateral-pvl-posterior-ventro-lateral-r-rostral-r-orbital-plate-with-orbitcloacal-aperture-behind-the-median-ventral-plate-underlying-layer-of-bony-substance-with-large-vascular-spaces-fig166-d-and-h-the-plates-are-frequently-marked-with-superficialpolygonal-areas-somewhat-like-those-of-the-cephalaspid-armourtraquair-466-fsammostcus-ag-devonian-europe-family-pteraspidae-the-head-and-body-are-narrower-and-thelateral-flaps-are-but-little-developed-fig-171-the-exact-shape-of-thetail-is-unknown-but-there-is-reason-to-believe-tha-image338321129.htmlRM2AJBT1D–A treatise on zoology . .l, postero-lateral; p.v.l, posterior ventro-lateral; r, rostral; .r, orbital plate with orbit;cloacal aperture behind the median ventral plate. underlying layer of bony substance with large vascular spaces (Fig.166, D and H). The plates are frequently marked with superficialpolygonal areas, somewhat like those of the Cephalaspid armour(Traquair [466]). Fsammostcus, Ag. ; Devonian, Europe. Family Pteraspidae. The head and body are narrower, and thelateral flaps are but little developed (Fig. 171). The exact shape of thetail is unknown, but there is reason to believe tha
. Current herpetology. Reptiles; Herpetology. 20 25 30 35 40 Ambient temperature Fig. 3. Relationships between ambient air tem- perature and cloacal body temperature of Opiums cuvieri cuvieri separately shown for five time cate- gories. CD CD CD 40 1997 4^ 35 CO k. CD Q. E 30 CD 25 40 (before 19 Nov) . e>g i f,g d,f i c i : c c { i b [ i c a 1 O Body temperature ? Ambient temperature 1 1 1 1 35 CO CD Q. E 30 0 - 25 40 r ^ 35 CO CD E 30 CD h- 25 c,d d cd c,d 1997 (after 18 Nov) c e,f e e d,f c i i c 1 b i a c,d i • b,d « 1 1998 1 1 7-9 9-11 11-13 13-15 15-18 Time of day Fig. 4. Daily variat Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/current-herpetology-reptiles-herpetology-20-25-30-35-40-ambient-temperature-fig-3-relationships-between-ambient-air-tem-perature-and-cloacal-body-temperature-of-opiums-cuvieri-cuvieri-separately-shown-for-five-time-cate-gories-cd-cd-cd-40-1997-4-35-co-k-cd-q-e-30-cd-25-40-before-19-nov-egtg-i-fg-df-i-c-i-c-c-i-b-i-c-a-1-o-body-temperature-ambient-temperature-1-1-1-1-35-co-cd-q-e-30-0-25-40-r-35-co-cd-e-30-cd-h-25-cd-d-cd-cd-1997-after-18-nov-c-ef-e-e-df-c-i-i-c-1-b-i-a-cd-i-bd-1-1998-1-1-7-9-9-11-11-13-13-15-15-18-time-of-day-fig-4-daily-variat-image216347517.htmlRMPFYDD1–. Current herpetology. Reptiles; Herpetology. 20 25 30 35 40 Ambient temperature Fig. 3. Relationships between ambient air tem- perature and cloacal body temperature of Opiums cuvieri cuvieri separately shown for five time cate- gories. CD CD CD 40 1997 4^ 35 CO k. CD Q. E 30 CD 25 40 (before 19 Nov) . e>g i f,g d,f i c i : c c { i b [ i c a 1 O Body temperature ? Ambient temperature 1 1 1 1 35 CO CD Q. E 30 0 - 25 40 r ^ 35 CO CD E 30 CD h- 25 c,d d cd c,d 1997 (after 18 Nov) c e,f e e d,f c i i c 1 b i a c,d i • b,d « 1 1998 1 1 7-9 9-11 11-13 13-15 15-18 Time of day Fig. 4. Daily variat
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 19.—Muscles in floor of pelvis—superior view (Deaver). Fig. 20.—Triangular ligament and compressor urethras muscle (Deaver). Page Nineteen It is separated from the pelvic contents above by the peritoneum and below^ by the baseof the ischio-rectal fossa and is crossed by the internal pudic vessels and nerve in theouter wall of the fossa in a special sheath of fascia. Piriformis muscle arises within the pelvis between the first, second, third and*^fourthsacral vertebrae, and from Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fig-19muscles-in-floor-of-pelvissuperior-view-deaver-fig-20triangular-ligament-and-compressor-urethras-muscle-deaver-page-nineteen-it-is-separated-from-the-pelvic-contents-above-by-the-peritoneum-and-below-by-the-baseof-the-ischio-rectal-fossa-and-is-crossed-by-the-internal-pudic-vessels-and-nerve-in-theouter-wall-of-the-fossa-in-a-special-sheath-of-fascia-piriformis-muscle-arises-within-the-pelvis-between-the-first-second-third-andfourthsacral-vertebrae-and-from-image340143084.htmlRM2ANARY8–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 19.—Muscles in floor of pelvis—superior view (Deaver). Fig. 20.—Triangular ligament and compressor urethras muscle (Deaver). Page Nineteen It is separated from the pelvic contents above by the peritoneum and below^ by the baseof the ischio-rectal fossa and is crossed by the internal pudic vessels and nerve in theouter wall of the fossa in a special sheath of fascia. Piriformis muscle arises within the pelvis between the first, second, third and*^fourthsacral vertebrae, and from
Gynaecology for students and practitioners . lantoic duct; B., bowel; Ch.,notachord ; Cl.M., cloacal membrane ; C, coelom (future pouch of Douglas) ;G.P., genital papilla ; S.Ur., urorectal septum ; Sin. Ug., sinus urogenitalis ;Sp., spinal cord ; T., tail. {see Fig. 59, M.D.), and produced Miillers prominence on its dorsalwall ; through this they open and their point of opening lies abovethat of the Wolffian ducts. DEVELOPMENT OF GENITOURINARY ORGANS 83 The bowel has been completely separated from the urogenitalsystem by the urorectal septum (.see Figs. 58 and 59). The upper partof the ventra Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynaecology-for-students-and-practitioners-lantoic-duct-b-bowel-chnotachord-clm-cloacal-membrane-c-coelom-future-pouch-of-douglas-gp-genital-papilla-sur-urorectal-septum-sin-ug-sinus-urogenitalis-sp-spinal-cord-t-tail-see-fig-59-md-and-produced-miillers-prominence-on-its-dorsalwall-through-this-they-open-and-their-point-of-opening-lies-abovethat-of-the-wolffian-ducts-development-of-genitourinary-organs-83-the-bowel-has-been-completely-separated-from-the-urogenitalsystem-by-the-urorectal-septum-see-figs-58-and-59-the-upper-partof-the-ventra-image340080987.htmlRM2AN80NF–Gynaecology for students and practitioners . lantoic duct; B., bowel; Ch.,notachord ; Cl.M., cloacal membrane ; C, coelom (future pouch of Douglas) ;G.P., genital papilla ; S.Ur., urorectal septum ; Sin. Ug., sinus urogenitalis ;Sp., spinal cord ; T., tail. {see Fig. 59, M.D.), and produced Miillers prominence on its dorsalwall ; through this they open and their point of opening lies abovethat of the Wolffian ducts. DEVELOPMENT OF GENITOURINARY ORGANS 83 The bowel has been completely separated from the urogenitalsystem by the urorectal septum (.see Figs. 58 and 59). The upper partof the ventra
. Outlines of zoology. « Fig. 266. — Origin of lungs,liver, and pancreas in thechick.—After Goette. The mesoderm is shaded; the endo derm dark.Ig.^ One of the lungs; Si.y stomach :l.^ liver ; p., pancreas. ALIMENTARY SYSTEM. 5° From the hindmost region of the gut, the allantoisgrows out in all animals from Amphibians onwards. InAmphibians it is represented by a cloacal bladder; in thehigher Vertebrates it is a vascular foetal membrane con-cerned with the respiration or nutrition of the embryo, orboth.. Fig. 267.—Section through a young newt. c.t., Connective tissue ; E.^ epidermis ; Z>., de Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/outlines-of-zoology-fig-266-origin-of-lungsliver-and-pancreas-in-thechickafter-goette-the-mesoderm-is-shaded-the-endo-derm-darkig-one-of-the-lungs-siy-stomach-l-liver-p-pancreas-alimentary-system-5-from-the-hindmost-region-of-the-gut-the-allantoisgrows-out-in-all-animals-from-amphibians-onwards-inamphibians-it-is-represented-by-a-cloacal-bladder-in-thehigher-vertebrates-it-is-a-vascular-foetal-membrane-con-cerned-with-the-respiration-or-nutrition-of-the-embryo-orboth-fig-267section-through-a-young-newt-ct-connective-tissue-e-epidermis-zgt-de-image337133956.htmlRM2AGDNPC–. Outlines of zoology. « Fig. 266. — Origin of lungs,liver, and pancreas in thechick.—After Goette. The mesoderm is shaded; the endo derm dark.Ig.^ One of the lungs; Si.y stomach :l.^ liver ; p., pancreas. ALIMENTARY SYSTEM. 5° From the hindmost region of the gut, the allantoisgrows out in all animals from Amphibians onwards. InAmphibians it is represented by a cloacal bladder; in thehigher Vertebrates it is a vascular foetal membrane con-cerned with the respiration or nutrition of the embryo, orboth.. Fig. 267.—Section through a young newt. c.t., Connective tissue ; E.^ epidermis ; Z>., de
The practice of surgery . A B c Fig. 34.—Imperforate anus T-ith different cloacal openings (male): A, Terminat-ing in bladder; B, terminating in the urethra; C, terminating at the meatus(Esmarch). bowel from the skin, meconium may be seen through it, or an impulsemay be felt when the child cries. In such case rupture with the fingeror aspiration of the bowel through the anus, and drainage for a few dayswith catheter or gauze, will establish a cure, care being taken that theopening is kept patent by daily stretching.^ The second type of imperforate anus is far more difficult of treat-ment, and Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-practice-of-surgery-a-b-c-fig-34imperforate-anus-t-ith-different-cloacal-openings-male-a-terminat-ing-in-bladder-b-terminating-in-the-urethra-c-terminating-at-the-meatusesmarch-bowel-from-the-skin-meconium-may-be-seen-through-it-or-an-impulsemay-be-felt-when-the-child-cries-in-such-case-rupture-with-the-fingeror-aspiration-of-the-bowel-through-the-anus-and-drainage-for-a-few-dayswith-catheter-or-gauze-will-establish-a-cure-care-being-taken-that-theopening-is-kept-patent-by-daily-stretching-the-second-type-of-imperforate-anus-is-far-more-difficult-of-treat-ment-and-image342817286.htmlRM2AWMJXE–The practice of surgery . A B c Fig. 34.—Imperforate anus T-ith different cloacal openings (male): A, Terminat-ing in bladder; B, terminating in the urethra; C, terminating at the meatus(Esmarch). bowel from the skin, meconium may be seen through it, or an impulsemay be felt when the child cries. In such case rupture with the fingeror aspiration of the bowel through the anus, and drainage for a few dayswith catheter or gauze, will establish a cure, care being taken that theopening is kept patent by daily stretching.^ The second type of imperforate anus is far more difficult of treat-ment, and
Quarterly journal of microscopical science . Fig. 8.—Diagram of the genital and excretory system of Chcetoderma^seen from above. Reconstructed after the description and figures ofHansen (6). O, genital gland; P, pericardium ; iV, Nephridia; r,rectum; Br, branchite, situated with the openings of N and r in theinfundibulum. Pig. 9.—The same of Neomenia carinata. 0, P, N, r, and 3r, as in Fig. 8.CI, cloacal cavity, into which r and iV open out. In this figure and in the foregoing the exact mode of communicationbetween 0 and P could not be represented, this having not yet beensatisfactorily settle Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/quarterly-journal-of-microscopical-science-fig-8diagram-of-the-genital-and-excretory-system-of-chcetodermaseen-from-above-reconstructed-after-the-description-and-figures-ofhansen-6-o-genital-gland-p-pericardium-iv-nephridia-rrectum-br-branchite-situated-with-the-openings-of-n-and-r-in-theinfundibulum-pig-9the-same-of-neomenia-carinata-0-p-n-r-and-3r-as-in-fig-8ci-cloacal-cavity-into-which-r-and-iv-open-out-in-this-figure-and-in-the-foregoing-the-exact-mode-of-communicationbetween-0-and-p-could-not-be-represented-this-having-not-yet-beensatisfactorily-settle-image343081462.htmlRM2AX4KWA–Quarterly journal of microscopical science . Fig. 8.—Diagram of the genital and excretory system of Chcetoderma^seen from above. Reconstructed after the description and figures ofHansen (6). O, genital gland; P, pericardium ; iV, Nephridia; r,rectum; Br, branchite, situated with the openings of N and r in theinfundibulum. Pig. 9.—The same of Neomenia carinata. 0, P, N, r, and 3r, as in Fig. 8.CI, cloacal cavity, into which r and iV open out. In this figure and in the foregoing the exact mode of communicationbetween 0 and P could not be represented, this having not yet beensatisfactorily settle
Quarterly journal of microscopical science . Fig. 8.—Diagram of the genital and excretory system of Chcetoderma^seen from above. Reconstructed after the description and figures ofHansen (6). O, genital gland; P, pericardium ; iV, Nephridia; r,rectum; Br, branchite, situated with the openings of N and r in theinfundibulum. Pig. 9.—The same of Neomenia carinata. 0, P, N, r, and 3r, as in Fig. 8.CI, cloacal cavity, into which r and iV open out. In this figure and in the foregoing the exact mode of communicationbetween 0 and P could not be represented, this having not yet beensatisfactorily settle Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/quarterly-journal-of-microscopical-science-fig-8diagram-of-the-genital-and-excretory-system-of-chcetodermaseen-from-above-reconstructed-after-the-description-and-figures-ofhansen-6-o-genital-gland-p-pericardium-iv-nephridia-rrectum-br-branchite-situated-with-the-openings-of-n-and-r-in-theinfundibulum-pig-9the-same-of-neomenia-carinata-0-p-n-r-and-3r-as-in-fig-8ci-cloacal-cavity-into-which-r-and-iv-open-out-in-this-figure-and-in-the-foregoing-the-exact-mode-of-communicationbetween-0-and-p-could-not-be-represented-this-having-not-yet-beensatisfactorily-settle-image343080780.htmlRM2AX4K10–Quarterly journal of microscopical science . Fig. 8.—Diagram of the genital and excretory system of Chcetoderma^seen from above. Reconstructed after the description and figures ofHansen (6). O, genital gland; P, pericardium ; iV, Nephridia; r,rectum; Br, branchite, situated with the openings of N and r in theinfundibulum. Pig. 9.—The same of Neomenia carinata. 0, P, N, r, and 3r, as in Fig. 8.CI, cloacal cavity, into which r and iV open out. In this figure and in the foregoing the exact mode of communicationbetween 0 and P could not be represented, this having not yet beensatisfactorily settle
Gynaecology for students and practitioners . Fig. 56. Showing the portion ofWolffian duct (A) which forms partof the trigone of the bladder. AU.D.,allantoic duct; BL, bladder; CI.,cloaca; U.B., ureteric bud; Wf.D.,Wolffian duct. 82 GYNECOLOGY Wolffian duct, just before it opens into the cloaca, the renal or ureteralbud {see Fig. 55, U.B.) ; this is the foundation of the ureter. The partof the Wolffian duct (A in Fig. 56) between its opening into the cloacaand the ureteral bud (see also Fig. 55) gets shorter and shorter and W.D Nt. V eav.. Fig. 57. Model of Cloacal Region of an Embryo, 11-5 mm. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynaecology-for-students-and-practitioners-fig-56-showing-the-portion-ofwolffian-duct-a-which-forms-partof-the-trigone-of-the-bladder-audallantoic-duct-bl-bladder-cicloaca-ub-ureteric-bud-wfdwolffian-duct-82-gynecology-wolffian-duct-just-before-it-opens-into-the-cloaca-the-renal-or-ureteralbud-see-fig-55-ub-this-is-the-foundation-of-the-ureter-the-partof-the-wolffian-duct-a-in-fig-56-between-its-opening-into-the-cloacaand-the-ureteral-bud-see-also-fig-55-gets-shorter-and-shorter-and-wd-nt-v-eav-fig-57-model-of-cloacal-region-of-an-embryo-11-5-mm-image340081648.htmlRM2AN81H4–Gynaecology for students and practitioners . Fig. 56. Showing the portion ofWolffian duct (A) which forms partof the trigone of the bladder. AU.D.,allantoic duct; BL, bladder; CI.,cloaca; U.B., ureteric bud; Wf.D.,Wolffian duct. 82 GYNECOLOGY Wolffian duct, just before it opens into the cloaca, the renal or ureteralbud {see Fig. 55, U.B.) ; this is the foundation of the ureter. The partof the Wolffian duct (A in Fig. 56) between its opening into the cloacaand the ureteral bud (see also Fig. 55) gets shorter and shorter and W.D Nt. V eav.. Fig. 57. Model of Cloacal Region of an Embryo, 11-5 mm.
![Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . |i^>V*s-^- Fio. 3 Cloaca of Rabbit. Fig. 4.—Showng tail extended. {Johns Hopkins Bulletin.) ( ]. M. Sph. Ani. Ext. M. Sph. Cloaca , > a. M. bulbo cavernosas j j (a) M. transversus perinei. ^ 2. M. Sph. Urogenit. (b) M. urethralis. b. M. ischio cavernosas. In the rabbit for example, we have an inteimediate stage in the separation of thecloacal muscle into its parts—for here the division is not complete and neither sphincterforms a ring—but the two together an open-jointed figu Stock Photo](https://c8.alamy.com/comp/2ANAJD7/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-igtvs-fio-3-cloaca-of-rabbit-fig-4showng-tail-extended-johns-hopkins-bulletin-m-sph-ani-ext-m-sph-cloaca-gt-a-m-bulbo-cavernosas-j-j-a-m-transversus-perinei-2-m-sph-urogenit-b-m-urethralis-b-m-ischio-cavernosas-in-the-rabbit-for-example-we-have-an-inteimediate-stage-in-the-separation-of-thecloacal-muscle-into-its-partsfor-here-the-division-is-not-complete-and-neither-sphincterforms-a-ringbut-the-two-together-an-open-jointed-figu-2ANAJD7.jpg "Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . |i^>V*s-^- Fio. 3 Cloaca of Rabbit. Fig. 4.—Showng tail extended. {Johns Hopkins Bulletin.) ( ]. M. Sph. Ani. Ext. M. Sph. Cloaca , > a. M. bulbo cavernosas j j (a) M. transversus perinei. ^ 2. M. Sph. Urogenit. (b) M. urethralis. b. M. ischio cavernosas. In the rabbit for example, we have an inteimediate stage in the separation of thecloacal muscle into its parts—for here the division is not complete and neither sphincterforms a ring—but the two together an open-jointed figu Stock Photo")
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . |i^>V*s-^- Fio. 3 Cloaca of Rabbit. Fig. 4.—Showng tail extended. {Johns Hopkins Bulletin.) ( ]. M. Sph. Ani. Ext. M. Sph. Cloaca , > a. M. bulbo cavernosas j j (a) M. transversus perinei. ^ 2. M. Sph. Urogenit. (b) M. urethralis. b. M. ischio cavernosas. In the rabbit for example, we have an inteimediate stage in the separation of thecloacal muscle into its parts—for here the division is not complete and neither sphincterforms a ring—but the two together an open-jointed figu Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-igtvs-fio-3-cloaca-of-rabbit-fig-4showng-tail-extended-johns-hopkins-bulletin-m-sph-ani-ext-m-sph-cloaca-gt-a-m-bulbo-cavernosas-j-j-a-m-transversus-perinei-2-m-sph-urogenit-b-m-urethralis-b-m-ischio-cavernosas-in-the-rabbit-for-example-we-have-an-inteimediate-stage-in-the-separation-of-thecloacal-muscle-into-its-partsfor-here-the-division-is-not-complete-and-neither-sphincterforms-a-ringbut-the-two-together-an-open-jointed-figu-image340138771.htmlRM2ANAJD7–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . |i^>V*s-^- Fio. 3 Cloaca of Rabbit. Fig. 4.—Showng tail extended. {Johns Hopkins Bulletin.) ( ]. M. Sph. Ani. Ext. M. Sph. Cloaca , > a. M. bulbo cavernosas j j (a) M. transversus perinei. ^ 2. M. Sph. Urogenit. (b) M. urethralis. b. M. ischio cavernosas. In the rabbit for example, we have an inteimediate stage in the separation of thecloacal muscle into its parts—for here the division is not complete and neither sphincterforms a ring—but the two together an open-jointed figu
A treatise on zoology . Fig. 169. Restoration of D/Cjifuiaspw gemUndencnsig, Sclil. Dorsal (A) and ventral view (B). LowerDeA-onian, Bundenbacli. (AfterTraquair, fromjBri7. Mus. Gtiuh.) a.v.l, anterior ventro-lateral;e.l, external labial; m, mental, behind the mouth ; in.d, median dorsal; m.v, median ventral;p.l, postero-lateral; p.v.l, posterior ventro-lateral; r, rostral; .r, orbital plate with orbit;cloacal aperture behind the median ventral plate. underlying layer of bony substance with large vascular spaces (Fig.166, D and H). The plates are frequently marked with superficialpolygonal are Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-treatise-on-zoology-fig-169-restoration-of-dcjifuiaspw-gemundencnsig-sclil-dorsal-a-and-ventral-view-b-lowerdea-onian-bundenbacli-aftertraquair-fromjbri7-mus-gtiuh-avl-anterior-ventro-lateralel-external-labial-m-mental-behind-the-mouth-ind-median-dorsal-mv-median-ventralpl-postero-lateral-pvl-posterior-ventro-lateral-r-rostral-r-orbital-plate-with-orbitcloacal-aperture-behind-the-median-ventral-plate-underlying-layer-of-bony-substance-with-large-vascular-spaces-fig166-d-and-h-the-plates-are-frequently-marked-with-superficialpolygonal-are-image338321285.htmlRM2AJBT71–A treatise on zoology . Fig. 169. Restoration of D/Cjifuiaspw gemUndencnsig, Sclil. Dorsal (A) and ventral view (B). LowerDeA-onian, Bundenbacli. (AfterTraquair, fromjBri7. Mus. Gtiuh.) a.v.l, anterior ventro-lateral;e.l, external labial; m, mental, behind the mouth ; in.d, median dorsal; m.v, median ventral;p.l, postero-lateral; p.v.l, posterior ventro-lateral; r, rostral; .r, orbital plate with orbit;cloacal aperture behind the median ventral plate. underlying layer of bony substance with large vascular spaces (Fig.166, D and H). The plates are frequently marked with superficialpolygonal are
Gynaecology for students and practitioners . Wf.D. Fig. 54. Cloacal Region of an Embryo 4-2 mm. in length (after Keibel).All.D., allantoic duct; C, coelom ; Ch., cord ; CI., cloaca ; B., bowel;T., tail; H.G., hind gut; W., Wolffian body ; Wf.D., Wolffian duct. bladder {see Fig. 57, B.L.), the other (dorsal) is in communication withthe hind gut {see Fig. 57, B.O.). The openings of the Wolffian ductsin the ventral segment of the cloaca form the site of the future differ-entiation of bladder and ureters on the one hand, from the sinus DEVELOPMENT OF GENITO-URINARY ORGANS 81 urogenitalis on the ot Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynaecology-for-students-and-practitioners-wfd-fig-54-cloacal-region-of-an-embryo-4-2-mm-in-length-after-keibelalld-allantoic-duct-c-coelom-ch-cord-ci-cloaca-b-bowelt-tail-hg-hind-gut-w-wolffian-body-wfd-wolffian-duct-bladder-see-fig-57-bl-the-other-dorsal-is-in-communication-withthe-hind-gut-see-fig-57-bo-the-openings-of-the-wolffian-ductsin-the-ventral-segment-of-the-cloaca-form-the-site-of-the-future-differ-entiation-of-bladder-and-ureters-on-the-one-hand-from-the-sinus-development-of-genito-urinary-organs-81-urogenitalis-on-the-ot-image340082537.htmlRM2AN82MW–Gynaecology for students and practitioners . Wf.D. Fig. 54. Cloacal Region of an Embryo 4-2 mm. in length (after Keibel).All.D., allantoic duct; C, coelom ; Ch., cord ; CI., cloaca ; B., bowel;T., tail; H.G., hind gut; W., Wolffian body ; Wf.D., Wolffian duct. bladder {see Fig. 57, B.L.), the other (dorsal) is in communication withthe hind gut {see Fig. 57, B.O.). The openings of the Wolffian ductsin the ventral segment of the cloaca form the site of the future differ-entiation of bladder and ureters on the one hand, from the sinus DEVELOPMENT OF GENITO-URINARY ORGANS 81 urogenitalis on the ot
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 8.—Cross-section throughthe middle of the tail (Fig. 4,a). M, muscle; M, degenerat-ing muscle; A, artery; A^,nerve; L is placed on the leftand R on the right of theappendage. X 9.. Fig. 9.—Caudal region of embryo of14 mm. (No. 144 of Dr. Malls collec-tion), combined from several sagittal sec-tions. An., anus; Ao., caudal aorta {A.sacralis media); Ca. fil., caudal filament;Ch., notochord; Med., medullary cord;5. u§., sinus urogenitalis; V. 32, thirdcoccygeal vertebra; 36, sevent Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fig-8cross-section-throughthe-middle-of-the-tail-fig-4a-m-muscle-m-degenerat-ing-muscle-a-artery-anerve-l-is-placed-on-the-leftand-r-on-the-right-of-theappendage-x-9-fig-9caudal-region-of-embryo-of14-mm-no-144-of-dr-malls-collec-tion-combined-from-several-sagittal-sec-tions-an-anus-ao-caudal-aorta-asacralis-media-ca-fil-caudal-filamentch-notochord-med-medullary-cord5-u-sinus-urogenitalis-v-32-thirdcoccygeal-vertebra-36-sevent-image340144833.htmlRM2ANAX5N–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 8.—Cross-section throughthe middle of the tail (Fig. 4,a). M, muscle; M, degenerat-ing muscle; A, artery; A^,nerve; L is placed on the leftand R on the right of theappendage. X 9.. Fig. 9.—Caudal region of embryo of14 mm. (No. 144 of Dr. Malls collec-tion), combined from several sagittal sec-tions. An., anus; Ao., caudal aorta {A.sacralis media); Ca. fil., caudal filament;Ch., notochord; Med., medullary cord;5. u§., sinus urogenitalis; V. 32, thirdcoccygeal vertebra; 36, sevent
Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 8.—Cross-section throughthe middle of the tail (Fig. 4,a). M, muscle; M, degenerat-ing muscle; A, artery; A^,nerve; L is placed on the leftand R on the right of theappendage. X 9.. Fig. 9.—Caudal region of embryo of14 mm. (No. 144 of Dr. Malls collec-tion), combined from several sagittal sec-tions. An., anus; Ao., caudal aorta {A.sacralis media); Ca. fil., caudal filament;Ch., notochord; Med., medullary cord;5. u§., sinus urogenitalis; V. 32, thirdcoccygeal vertebra; 36, sevent Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cloacal-morphology-in-its-relation-to-genito-urinary-and-rectal-diseaseswith-54-plates-and-93-illustrations-fig-8cross-section-throughthe-middle-of-the-tail-fig-4a-m-muscle-m-degenerat-ing-muscle-a-artery-anerve-l-is-placed-on-the-leftand-r-on-the-right-of-theappendage-x-9-fig-9caudal-region-of-embryo-of14-mm-no-144-of-dr-malls-collec-tion-combined-from-several-sagittal-sec-tions-an-anus-ao-caudal-aorta-asacralis-media-ca-fil-caudal-filamentch-notochord-med-medullary-cord5-u-sinus-urogenitalis-v-32-thirdcoccygeal-vertebra-36-sevent-image340136056.htmlRM2ANAF08–Cloacal morphology in its relation to genito-urinary and rectal diseases(With 54 plates and 93 illustrations.) . Fig. 8.—Cross-section throughthe middle of the tail (Fig. 4,a). M, muscle; M, degenerat-ing muscle; A, artery; A^,nerve; L is placed on the leftand R on the right of theappendage. X 9.. Fig. 9.—Caudal region of embryo of14 mm. (No. 144 of Dr. Malls collec-tion), combined from several sagittal sec-tions. An., anus; Ao., caudal aorta {A.sacralis media); Ca. fil., caudal filament;Ch., notochord; Med., medullary cord;5. u§., sinus urogenitalis; V. 32, thirdcoccygeal vertebra; 36, sevent
Traité d'anatomie humaine : anatomie descriptive, histologie, développement . Fig. 472. Développement du système uro-génital, coupe sagittale de lembryon {schématique). A et B, deux stades successifs. i. bouchon cloacal. — 1, lame urélhrale du même. — 2, cloaque intcrue. — 3, allantoide. — 3, vessie. — 4, canalde WolCr. — 5, uretère. — 6, intestin. — 7, qordc dorsale. — S, moelle. — 9, cavité péritonéale. — 10, sinus uro-génilal.— li, périnée. — 12, auus. au pédicule de lallantoïde, lautre postérieur qui est en rapport avec lintestin. Cecloisonnement peut se suivre aisément sur les figures 472 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/trait-danatomie-humaine-anatomie-descriptive-histologie-dveloppement-fig-472-dveloppement-du-systme-uro-gnital-coupe-sagittale-de-lembryon-schmatique-a-et-b-deux-stades-successifs-i-bouchon-cloacal-1-lame-urlhrale-du-mme-2-cloaque-intcrue-3-allantoide-3-vessie-4-canalde-wolcr-5-uretre-6-intestin-7-qordc-dorsale-s-moelle-9-cavit-pritonale-10-sinus-uro-gnilal-li-prine-12-auus-au-pdicule-de-lallantode-lautre-postrieur-qui-est-en-rapport-avec-lintestin-cecloisonnement-peut-se-suivre-aisment-sur-les-figures-472-image338473335.htmlRM2AJJP5B–Traité d'anatomie humaine : anatomie descriptive, histologie, développement . Fig. 472. Développement du système uro-génital, coupe sagittale de lembryon {schématique). A et B, deux stades successifs. i. bouchon cloacal. — 1, lame urélhrale du même. — 2, cloaque intcrue. — 3, allantoide. — 3, vessie. — 4, canalde WolCr. — 5, uretère. — 6, intestin. — 7, qordc dorsale. — S, moelle. — 9, cavité péritonéale. — 10, sinus uro-génilal.— li, périnée. — 12, auus. au pédicule de lallantoïde, lautre postérieur qui est en rapport avec lintestin. Cecloisonnement peut se suivre aisément sur les figures 472
Gynaecology for students and practitioners . Model of the CloacalOF AN Embryo 3 mm. inLENGTH (after Keibel). All.D., ductof allantois; Ao., aorta; U.A., um-bilical artery; C, coelom ; Ch., cord ;CI., cloaca ; Cl.M., cloacal membrane ;B., bowel; C.E., caudal extremity;H.G., hind gut; M.D., spinal canal.. Wf.D. Fig. 54. Cloacal Region of an Embryo 4-2 mm. in length (after Keibel).All.D., allantoic duct; C, coelom ; Ch., cord ; CI., cloaca ; B., bowel;T., tail; H.G., hind gut; W., Wolffian body ; Wf.D., Wolffian duct. bladder {see Fig. 57, B.L.), the other (dorsal) is in communication withthe hin Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynaecology-for-students-and-practitioners-model-of-the-cloacalof-an-embryo-3-mm-inlength-after-keibel-alld-ductof-allantois-ao-aorta-ua-um-bilical-artery-c-coelom-ch-cord-ci-cloaca-clm-cloacal-membrane-b-bowel-ce-caudal-extremityhg-hind-gut-md-spinal-canal-wfd-fig-54-cloacal-region-of-an-embryo-4-2-mm-in-length-after-keibelalld-allantoic-duct-c-coelom-ch-cord-ci-cloaca-b-bowelt-tail-hg-hind-gut-w-wolffian-body-wfd-wolffian-duct-bladder-see-fig-57-bl-the-other-dorsal-is-in-communication-withthe-hin-image340082848.htmlRM2AN8340–Gynaecology for students and practitioners . Model of the CloacalOF AN Embryo 3 mm. inLENGTH (after Keibel). All.D., ductof allantois; Ao., aorta; U.A., um-bilical artery; C, coelom ; Ch., cord ;CI., cloaca ; Cl.M., cloacal membrane ;B., bowel; C.E., caudal extremity;H.G., hind gut; M.D., spinal canal.. Wf.D. Fig. 54. Cloacal Region of an Embryo 4-2 mm. in length (after Keibel).All.D., allantoic duct; C, coelom ; Ch., cord ; CI., cloaca ; B., bowel;T., tail; H.G., hind gut; W., Wolffian body ; Wf.D., Wolffian duct. bladder {see Fig. 57, B.L.), the other (dorsal) is in communication withthe hin
A treatise on zoology . up - P ^ Fig. 356.A, B, C, and D, dia,.;rains of the urinogenital organs in male Dijinoi and Teleostomi. A,AciiKiimr (Lepidosteus and Amw are similar, but without the funnel m.d). B, Teleostei; and0, Polypterus (from Budgetts figures). D, Protopterus (from W. N. Parlvers figures). E,urinogeuital papilla of a female Salino, ventral view. F, similar view of a male Polypterus(afterBudgett). a, anus; tt.p, abdominal pore; h.c, renal capsule; c, cloacal bladder; g.p,genital papilla; k, mesouephros ; l.d, longitudinal duct; l.t.d, longitudinal testis duct; m.d,Miillerian duct Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-treatise-on-zoology-up-p-fig-356a-b-c-and-d-diarains-of-the-urinogenital-organs-in-male-dijinoi-and-teleostomi-aaciikiimr-lepidosteus-and-amw-are-similar-but-without-the-funnel-md-b-teleostei-and0-polypterus-from-budgetts-figures-d-protopterus-from-w-n-parlvers-figures-eurinogeuital-papilla-of-a-female-salino-ventral-view-f-similar-view-of-a-male-polypterusafterbudgett-a-anus-ttp-abdominal-pore-hc-renal-capsule-c-cloacal-bladder-gpgenital-papilla-k-mesouephros-ld-longitudinal-duct-ltd-longitudinal-testis-duct-mdmiillerian-duct-image338256059.htmlRM2AJ8W1F–A treatise on zoology . up - P ^ Fig. 356.A, B, C, and D, dia,.;rains of the urinogenital organs in male Dijinoi and Teleostomi. A,AciiKiimr (Lepidosteus and Amw are similar, but without the funnel m.d). B, Teleostei; and0, Polypterus (from Budgetts figures). D, Protopterus (from W. N. Parlvers figures). E,urinogeuital papilla of a female Salino, ventral view. F, similar view of a male Polypterus(afterBudgett). a, anus; tt.p, abdominal pore; h.c, renal capsule; c, cloacal bladder; g.p,genital papilla; k, mesouephros ; l.d, longitudinal duct; l.t.d, longitudinal testis duct; m.d,Miillerian duct
Traité de gynécologie clinique et opératoire . ion, selon la méthode de Mathias Ddval,pour maintenir les organes dans leurs rapports naturels. Le repli cloacal descendrait bienréellement, comme lont annoncé tous les observateurs, mais cet abaissement résulteraitde la suture médiane des deux saillies latérales du cloaque. Ce pli unique ne doit sonexistence quà la réunion des deux plis latéraux, et il donnera naissance à la cloison ouseplum uréthro-rcelai; cest un processus qui rappelle la fermeture de la gouttièremédullaire par le rapprochement et la soudure des replis médullaires. Ainsi, le cl Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/trait-de-gyncologie-clinique-et-opratoire-ion-selon-la-mthode-de-mathias-ddvalpour-maintenir-les-organes-dans-leurs-rapports-naturels-le-repli-cloacal-descendrait-bienrellement-comme-lont-annonc-tous-les-observateurs-mais-cet-abaissement-rsulteraitde-la-suture-mdiane-des-deux-saillies-latrales-du-cloaque-ce-pli-unique-ne-doit-sonexistence-qu-la-runion-des-deux-plis-latraux-et-il-donnera-naissance-la-cloison-ouseplum-urthro-rcelai-cest-un-processus-qui-rappelle-la-fermeture-de-la-gouttiremdullaire-par-le-rapprochement-et-la-soudure-des-replis-mdullaires-ainsi-le-cl-image340224937.htmlRM2ANEGAH–Traité de gynécologie clinique et opératoire . ion, selon la méthode de Mathias Ddval,pour maintenir les organes dans leurs rapports naturels. Le repli cloacal descendrait bienréellement, comme lont annoncé tous les observateurs, mais cet abaissement résulteraitde la suture médiane des deux saillies latérales du cloaque. Ce pli unique ne doit sonexistence quà la réunion des deux plis latéraux, et il donnera naissance à la cloison ouseplum uréthro-rcelai; cest un processus qui rappelle la fermeture de la gouttièremédullaire par le rapprochement et la soudure des replis médullaires. Ainsi, le cl
Gynaecology for students and practitioners . Fig. 57. Model of Cloacal Region of an Embryo, 11-5 mm. in length(after Keibel). All.D., allantoic duct; Ao., aorta; B.W., belly wall; C,coelom ; Ch., notachord ; CI., cloaca; Bo., bowel; G.P., genital papilla;BL, bladder ; Sp.C, spinal canal; R.P., renal pelvis ; Nv., nerve ; T., tail;Sp.G., spinal ganglion ; U., ureter ; V.cav., vena cava ; W.D., Wolffian duct. it ultimately helps to form the trigone of the bladder and a part of theurethra {see Fig. 59, P.R.). Meanwhile Miillers ducts have reached the sinus urogenitalis ALLD Cl.M.. Ci. Fig. 58. S Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynaecology-for-students-and-practitioners-fig-57-model-of-cloacal-region-of-an-embryo-11-5-mm-in-lengthafter-keibel-alld-allantoic-duct-ao-aorta-bw-belly-wall-ccoelom-ch-notachord-ci-cloaca-bo-bowel-gp-genital-papillabl-bladder-spc-spinal-canal-rp-renal-pelvis-nv-nerve-t-tailspg-spinal-ganglion-u-ureter-vcav-vena-cava-wd-wolffian-duct-it-ultimately-helps-to-form-the-trigone-of-the-bladder-and-a-part-of-theurethra-see-fig-59-pr-meanwhile-miillers-ducts-have-reached-the-sinus-urogenitalis-alld-clm-ci-fig-58-s-image340081197.htmlRM2AN8111–Gynaecology for students and practitioners . Fig. 57. Model of Cloacal Region of an Embryo, 11-5 mm. in length(after Keibel). All.D., allantoic duct; Ao., aorta; B.W., belly wall; C,coelom ; Ch., notachord ; CI., cloaca; Bo., bowel; G.P., genital papilla;BL, bladder ; Sp.C, spinal canal; R.P., renal pelvis ; Nv., nerve ; T., tail;Sp.G., spinal ganglion ; U., ureter ; V.cav., vena cava ; W.D., Wolffian duct. it ultimately helps to form the trigone of the bladder and a part of theurethra {see Fig. 59, P.R.). Meanwhile Miillers ducts have reached the sinus urogenitalis ALLD Cl.M.. Ci. Fig. 58. S
Traité de médecine et de thérapeutique . que Trichuris, parce quils confirment une erreur. Us doiventrester en synonymie et céder la place à Trichocephalus, constatant la vérité anstomique. La loi de priorité ne saurait prévaloir ici, son application faite sansmesure aurait de réels inconvénients : Summum jus summa injuria. TR1CH0CÉPHALE DE LHOMME. 765 plusieurs fois sur elle-même en une spirale aplatie. Lorifice cloacal est ter-minal, avec un spicule unique. La femelle est plus grande que le mâle de40 à 50 millimètres de longeur (fig. 54) ; la partie renflée du corps est rectiligne à peine a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/trait-de-mdecine-et-de-thrapeutique-que-trichuris-parce-quils-confirment-une-erreur-us-doiventrester-en-synonymie-et-cder-la-place-trichocephalus-constatant-la-vrit-anstomique-la-loi-de-priorit-ne-saurait-prvaloir-ici-son-application-faite-sansmesure-aurait-de-rels-inconvnients-summum-jus-summa-injuria-tr1ch0cphale-de-lhomme-765-plusieurs-fois-sur-elle-mme-en-une-spirale-aplatie-lorifice-cloacal-est-ter-minal-avec-un-spicule-unique-la-femelle-est-plus-grande-que-le-mle-de40-50-millimtres-de-longeur-fig-54-la-partie-renfle-du-corps-est-rectiligne-peine-a-image339277309.htmlRM2AKYBJN–Traité de médecine et de thérapeutique . que Trichuris, parce quils confirment une erreur. Us doiventrester en synonymie et céder la place à Trichocephalus, constatant la vérité anstomique. La loi de priorité ne saurait prévaloir ici, son application faite sansmesure aurait de réels inconvénients : Summum jus summa injuria. TR1CH0CÉPHALE DE LHOMME. 765 plusieurs fois sur elle-même en une spirale aplatie. Lorifice cloacal est ter-minal, avec un spicule unique. La femelle est plus grande que le mâle de40 à 50 millimètres de longeur (fig. 54) ; la partie renflée du corps est rectiligne à peine a
. A dictionary of birds . nd lower lobes, as well as to part of the oviduct, after whichit leaves the pelvis together with the ischiadic nerve through theischiadic foramen and ultimately descends the leg, separating into theanterior and posterior tibial arteries. Lastly there are a pair ofarterise pudendse commmies, branches of which supply the lateriventralmuscles of the tail, the CLOACA and copulatory organs, and near theplace where this pair originate arises also the unpaired a. mesentericainferim, which supplies most of the rectum, part of the CiECA and partof the cloacal region—a jjeculia Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-dictionary-of-birds-nd-lower-lobes-as-well-as-to-part-of-the-oviduct-after-whichit-leaves-the-pelvis-together-with-the-ischiadic-nerve-through-theischiadic-foramen-and-ultimately-descends-the-leg-separating-into-theanterior-and-posterior-tibial-arteries-lastly-there-are-a-pair-ofarterise-pudendse-commmies-branches-of-which-supply-the-lateriventralmuscles-of-the-tail-the-cloaca-and-copulatory-organs-and-near-theplace-where-this-pair-originate-arises-also-the-unpaired-a-mesentericainferim-which-supplies-most-of-the-rectum-part-of-the-cieca-and-partof-the-cloacal-regiona-jjeculia-image375004091.htmlRM2CP2WF7–. A dictionary of birds . nd lower lobes, as well as to part of the oviduct, after whichit leaves the pelvis together with the ischiadic nerve through theischiadic foramen and ultimately descends the leg, separating into theanterior and posterior tibial arteries. Lastly there are a pair ofarterise pudendse commmies, branches of which supply the lateriventralmuscles of the tail, the CLOACA and copulatory organs, and near theplace where this pair originate arises also the unpaired a. mesentericainferim, which supplies most of the rectum, part of the CiECA and partof the cloacal region—a jjeculia
. Gynecology : . LAo>rv.s T. Fig. 176.—Epispadias. Exstrophy and epispadias are comparatively rare conditions in the female.Both these malformations are different grades of the same embryonic defect. In the early stages of development the cloacal membrane reaches to theprimitive belly-stalk or forerunner of the umbilical cord. As the embryo growsthe upper portion of this membrane disappears as the sides of the abdominalwall and pelvis join, while the lower part corresponds to the opening of the uro-genital sinus and the rectum. DEFECTS OF DEVELOPMENT 447 Under abnormal conditions the cloa Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynecology-laogtrvs-t-fig-176epispadias-exstrophy-and-epispadias-are-comparatively-rare-conditions-in-the-femaleboth-these-malformations-are-different-grades-of-the-same-embryonic-defect-in-the-early-stages-of-development-the-cloacal-membrane-reaches-to-theprimitive-belly-stalk-or-forerunner-of-the-umbilical-cord-as-the-embryo-growsthe-upper-portion-of-this-membrane-disappears-as-the-sides-of-the-abdominalwall-and-pelvis-join-while-the-lower-part-corresponds-to-the-opening-of-the-uro-genital-sinus-and-the-rectum-defects-of-development-447-under-abnormal-conditions-the-cloa-image369823835.htmlRM2CDJX23–. Gynecology : . LAo>rv.s T. Fig. 176.—Epispadias. Exstrophy and epispadias are comparatively rare conditions in the female.Both these malformations are different grades of the same embryonic defect. In the early stages of development the cloacal membrane reaches to theprimitive belly-stalk or forerunner of the umbilical cord. As the embryo growsthe upper portion of this membrane disappears as the sides of the abdominalwall and pelvis join, while the lower part corresponds to the opening of the uro-genital sinus and the rectum. DEFECTS OF DEVELOPMENT 447 Under abnormal conditions the cloa
. A dictionary of birds . lobes, as well as to part of the oviduct, after whichit leaves the pelvis together with the ischiadic nerve through theischiadic foramen and ultimately descends the leg, separating into theanterior and posterior tibial arteries. Lastly there are a pair ofarteriie pudendse communes, branches of which supply the lateriventralmuscles of the tail, the cloaca and copulatory organs, and near theplace Avhere this pair originate arises also tlie unpaired a. mesentericainferim; which supplies most of the rectum, part of the C^CA and partof the cloacal region—a peculiar branch, Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-dictionary-of-birds-lobes-as-well-as-to-part-of-the-oviduct-after-whichit-leaves-the-pelvis-together-with-the-ischiadic-nerve-through-theischiadic-foramen-and-ultimately-descends-the-leg-separating-into-theanterior-and-posterior-tibial-arteries-lastly-there-are-a-pair-ofarteriie-pudendse-communes-branches-of-which-supply-the-lateriventralmuscles-of-the-tail-the-cloaca-and-copulatory-organs-and-near-theplace-avhere-this-pair-originate-arises-also-tlie-unpaired-a-mesentericainferim-which-supplies-most-of-the-rectum-part-of-the-cca-and-partof-the-cloacal-regiona-peculiar-branch-image375271441.htmlRM2CPF2FD–. A dictionary of birds . lobes, as well as to part of the oviduct, after whichit leaves the pelvis together with the ischiadic nerve through theischiadic foramen and ultimately descends the leg, separating into theanterior and posterior tibial arteries. Lastly there are a pair ofarteriie pudendse communes, branches of which supply the lateriventralmuscles of the tail, the cloaca and copulatory organs, and near theplace Avhere this pair originate arises also tlie unpaired a. mesentericainferim; which supplies most of the rectum, part of the C^CA and partof the cloacal region—a peculiar branch,
. Gynecology : . Fig. 179.—The sinus urogenitalis is formed. The ureter is seen sprouting from the Wolffianduct. The Miillers ducts have at this stage not yet reached the sinus urogenitalis, their futureposition being shown by the dotted lines (Pankow). condition is called exstrophy of the bladder. The extrusion of the bladder is dueto abdominal pressure which forces the posterior bladder wall out through theabdominal opening. 448 GYNECOLOGY. Fig. 180.—The urogenital sinus has broken through the cloacal membrane. The intestine isstill closed. The Miillerian ducts have reached the urogenital si Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynecology-fig-179the-sinus-urogenitalis-is-formed-the-ureter-is-seen-sprouting-from-the-wolffianduct-the-miillers-ducts-have-at-this-stage-not-yet-reached-the-sinus-urogenitalis-their-futureposition-being-shown-by-the-dotted-lines-pankow-condition-is-called-exstrophy-of-the-bladder-the-extrusion-of-the-bladder-is-dueto-abdominal-pressure-which-forces-the-posterior-bladder-wall-out-through-theabdominal-opening-448-gynecology-fig-180the-urogenital-sinus-has-broken-through-the-cloacal-membrane-the-intestine-isstill-closed-the-miillerian-ducts-have-reached-the-urogenital-si-image369823703.htmlRM2CDJWWB–. Gynecology : . Fig. 179.—The sinus urogenitalis is formed. The ureter is seen sprouting from the Wolffianduct. The Miillers ducts have at this stage not yet reached the sinus urogenitalis, their futureposition being shown by the dotted lines (Pankow). condition is called exstrophy of the bladder. The extrusion of the bladder is dueto abdominal pressure which forces the posterior bladder wall out through theabdominal opening. 448 GYNECOLOGY. Fig. 180.—The urogenital sinus has broken through the cloacal membrane. The intestine isstill closed. The Miillerian ducts have reached the urogenital si
. Text-book of normal histology: including an account of the development of the tissues and of the organs. f thekidney consists in a dorsal outgrowth fromthe Wolffian duct near its cloacal end ; this diver-ticulum grows forward and parallel with theWolffian duct until its extremity reaches aposition behind and somewhat above the caudalend of the Wolffian body. The primary kidney-tube now expands at its upper end, the dilatedportion subsequently undergoing peripheralcleavage into a number of tubular compart-ments. Coincidently with the growth and dif-ferentiation of the epithelial evagination f Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/text-book-of-normal-histology-including-an-account-of-the-development-of-the-tissues-and-of-the-organs-f-thekidney-consists-in-a-dorsal-outgrowth-fromthe-wolffian-duct-near-its-cloacal-end-this-diver-ticulum-grows-forward-and-parallel-with-thewolffian-duct-until-its-extremity-reaches-aposition-behind-and-somewhat-above-the-caudalend-of-the-wolffian-body-the-primary-kidney-tube-now-expands-at-its-upper-end-the-dilatedportion-subsequently-undergoing-peripheralcleavage-into-a-number-of-tubular-compart-ments-coincidently-with-the-growth-and-dif-ferentiation-of-the-epithelial-evagination-f-image370380942.htmlRM2CEG8JP–. Text-book of normal histology: including an account of the development of the tissues and of the organs. f thekidney consists in a dorsal outgrowth fromthe Wolffian duct near its cloacal end ; this diver-ticulum grows forward and parallel with theWolffian duct until its extremity reaches aposition behind and somewhat above the caudalend of the Wolffian body. The primary kidney-tube now expands at its upper end, the dilatedportion subsequently undergoing peripheralcleavage into a number of tubular compart-ments. Coincidently with the growth and dif-ferentiation of the epithelial evagination f
. Gynecology : . Fig. 180.—The urogenital sinus has broken through the cloacal membrane. The intestine isstill closed. The Miillerian ducts have reached the urogenital sinus to the median side of theWolffian ducts, but have not yet acquired an open lumen. The site of the future hymen isindicated. The ureter has separated from the Wolffian duct. The part between the ureter andMullers ducts becomes the lower part of the bladder and the urethra. Douglas pouch is in-dicated between the gut and the urogenital sinus. The shaded portion protruding to the left of thedrawing represents the genital tube Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynecology-fig-180the-urogenital-sinus-has-broken-through-the-cloacal-membrane-the-intestine-isstill-closed-the-miillerian-ducts-have-reached-the-urogenital-sinus-to-the-median-side-of-thewolffian-ducts-but-have-not-yet-acquired-an-open-lumen-the-site-of-the-future-hymen-isindicated-the-ureter-has-separated-from-the-wolffian-duct-the-part-between-the-ureter-andmullers-ducts-becomes-the-lower-part-of-the-bladder-and-the-urethra-douglas-pouch-is-in-dicated-between-the-gut-and-the-urogenital-sinus-the-shaded-portion-protruding-to-the-left-of-thedrawing-represents-the-genital-tube-image369823490.htmlRM2CDJWHP–. Gynecology : . Fig. 180.—The urogenital sinus has broken through the cloacal membrane. The intestine isstill closed. The Miillerian ducts have reached the urogenital sinus to the median side of theWolffian ducts, but have not yet acquired an open lumen. The site of the future hymen isindicated. The ureter has separated from the Wolffian duct. The part between the ureter andMullers ducts becomes the lower part of the bladder and the urethra. Douglas pouch is in-dicated between the gut and the urogenital sinus. The shaded portion protruding to the left of thedrawing represents the genital tube
. The development of the chick; an introduction to embryology . nd of the embryo. The cloaca is thelarge terminal cavity of the intestine, closed from the exteriorby the cloacal membrane, in which the entoderm of the floor ofthe cloaca is fused to the superficial ectoderm at the base of thetail. The line of fusion is a long, narrow median strip, extendingfrom just below the neck of the allantois to the hinder end of thecloaca. Leading out from the cloaca ventrally, in front of the 316 THE DEVELOPMENT OF THE CHICK cloaciil nicml)nine, is tlie neck of tlio allantois, and dorsal to this,the large Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-development-of-the-chick-an-introduction-to-embryology-nd-of-the-embryo-the-cloaca-is-thelarge-terminal-cavity-of-the-intestine-closed-from-the-exteriorby-the-cloacal-membrane-in-which-the-entoderm-of-the-floor-ofthe-cloaca-is-fused-to-the-superficial-ectoderm-at-the-base-of-thetail-the-line-of-fusion-is-a-long-narrow-median-strip-extendingfrom-just-below-the-neck-of-the-allantois-to-the-hinder-end-of-thecloaca-leading-out-from-the-cloaca-ventrally-in-front-of-the-316-the-development-of-the-chick-cloaciil-nicmlnine-is-tlie-neck-of-tlio-allantois-and-dorsal-to-thisthe-large-image375406782.htmlRM2CPN752–. The development of the chick; an introduction to embryology . nd of the embryo. The cloaca is thelarge terminal cavity of the intestine, closed from the exteriorby the cloacal membrane, in which the entoderm of the floor ofthe cloaca is fused to the superficial ectoderm at the base of thetail. The line of fusion is a long, narrow median strip, extendingfrom just below the neck of the allantois to the hinder end of thecloaca. Leading out from the cloaca ventrally, in front of the 316 THE DEVELOPMENT OF THE CHICK cloaciil nicml)nine, is tlie neck of tlio allantois, and dorsal to this,the large
![. On the anatomy of vertebrates [electronic resource] . , in Leporidce) within the abdomen. Besides Cowperianthere are prostatic and vesi-cular glands, usually large:but, again, the Leporidceshow their exceptional cha-racter in the Order by theabsence of the latter. Inthe Hare (Lepus timidus)the testes make a more con-spicuous prominence thanin other Rodents, in theirscrotal bags, one on each sidethe cloacal vent, fig. 505, a.The tunica vaginalis retainsan opening wide enough forthe repassage of the testisinto the abdomen, but itadheres to the bottom of thesac, the serous membraneof which is t Stock Photo](https://c8.alamy.com/comp/2CP6CNK/on-the-anatomy-of-vertebrates-electronic-resource-in-leporidce-within-the-abdomen-besides-cowperianthere-are-prostatic-and-vesi-cular-glands-usually-largebut-again-the-leporidceshow-their-exceptional-cha-racter-in-the-order-by-theabsence-of-the-latter-inthe-hare-lepus-timidusthe-testes-make-a-more-con-spicuous-prominence-thanin-other-rodents-in-theirscrotal-bags-one-on-each-sidethe-cloacal-vent-fig-505-athe-tunica-vaginalis-retainsan-opening-wide-enough-forthe-repassage-of-the-testisinto-the-abdomen-but-itadheres-to-the-bottom-of-thesac-the-serous-membraneof-which-is-t-2CP6CNK.jpg ". On the anatomy of vertebrates [electronic resource] . , in Leporidce) within the abdomen. Besides Cowperianthere are prostatic and vesi-cular glands, usually large:but, again, the Leporidceshow their exceptional cha-racter in the Order by theabsence of the latter. Inthe Hare (Lepus timidus)the testes make a more con-spicuous prominence thanin other Rodents, in theirscrotal bags, one on each sidethe cloacal vent, fig. 505, a.The tunica vaginalis retainsan opening wide enough forthe repassage of the testisinto the abdomen, but itadheres to the bottom of thesac, the serous membraneof which is t Stock Photo")
. On the anatomy of vertebrates [electronic resource] . , in Leporidce) within the abdomen. Besides Cowperianthere are prostatic and vesi-cular glands, usually large:but, again, the Leporidceshow their exceptional cha-racter in the Order by theabsence of the latter. Inthe Hare (Lepus timidus)the testes make a more con-spicuous prominence thanin other Rodents, in theirscrotal bags, one on each sidethe cloacal vent, fig. 505, a.The tunica vaginalis retainsan opening wide enough forthe repassage of the testisinto the abdomen, but itadheres to the bottom of thesac, the serous membraneof which is t Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/on-the-anatomy-of-vertebrates-electronic-resource-in-leporidce-within-the-abdomen-besides-cowperianthere-are-prostatic-and-vesi-cular-glands-usually-largebut-again-the-leporidceshow-their-exceptional-cha-racter-in-the-order-by-theabsence-of-the-latter-inthe-hare-lepus-timidusthe-testes-make-a-more-con-spicuous-prominence-thanin-other-rodents-in-theirscrotal-bags-one-on-each-sidethe-cloacal-vent-fig-505-athe-tunica-vaginalis-retainsan-opening-wide-enough-forthe-repassage-of-the-testisinto-the-abdomen-but-itadheres-to-the-bottom-of-thesac-the-serous-membraneof-which-is-t-image375081887.htmlRM2CP6CNK–. On the anatomy of vertebrates [electronic resource] . , in Leporidce) within the abdomen. Besides Cowperianthere are prostatic and vesi-cular glands, usually large:but, again, the Leporidceshow their exceptional cha-racter in the Order by theabsence of the latter. Inthe Hare (Lepus timidus)the testes make a more con-spicuous prominence thanin other Rodents, in theirscrotal bags, one on each sidethe cloacal vent, fig. 505, a.The tunica vaginalis retainsan opening wide enough forthe repassage of the testisinto the abdomen, but itadheres to the bottom of thesac, the serous membraneof which is t
. A monograph of the Najades of Pennsylvania . farther back, the two outer canals (belonging to the outer gills) open into and unite with this cloacal chamber.2 In a posterior view (See fig. 4) the diaphragm separatingthe branchial and cloacal openings forms a rather short, sim-ple, horizontal bridge, from which the gills hang down.Sometimes there is a slight median incision, when the two in-ner laminae of the inner gills are not fully united to theirends, but according to my investigations this has no system-atic value. We are to note an exception to the normal structure, andthis is again Mar Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-monograph-of-the-najades-of-pennsylvania-farther-back-the-two-outer-canals-belonging-to-the-outer-gills-open-into-and-unite-with-this-cloacal-chamber2-in-a-posterior-view-see-fig-4-the-diaphragm-separatingthe-branchial-and-cloacal-openings-forms-a-rather-short-sim-ple-horizontal-bridge-from-which-the-gills-hang-downsometimes-there-is-a-slight-median-incision-when-the-two-in-ner-laminae-of-the-inner-gills-are-not-fully-united-to-theirends-but-according-to-my-investigations-this-has-no-system-atic-value-we-are-to-note-an-exception-to-the-normal-structure-andthis-is-again-mar-image372490245.htmlRM2CJ0B31–. A monograph of the Najades of Pennsylvania . farther back, the two outer canals (belonging to the outer gills) open into and unite with this cloacal chamber.2 In a posterior view (See fig. 4) the diaphragm separatingthe branchial and cloacal openings forms a rather short, sim-ple, horizontal bridge, from which the gills hang down.Sometimes there is a slight median incision, when the two in-ner laminae of the inner gills are not fully united to theirends, but according to my investigations this has no system-atic value. We are to note an exception to the normal structure, andthis is again Mar
. Gynecology : . s of themuscular abdominal wall or of the pelvis. The thin epithelial cloacal membrane ^=- iHntestwie. 3AcmW== I S *?? ^WjbcAtr CloaccxV =^ povrvrt o^ 3fcmWugg bucs ^j^ (oloo-co, Fig. 177.—Common cloaca into which thegut and the allantois empty. The cloacal mem-brane reaches to the region of the later bladderand urethra. Knowledge of this membrane isimportant in understanding exstrophy of thebladder (Pankow). M«&>—* ItSlub&tv G. ^^ yi:o[{- CUxxtcvl.... Jm f ^^^ l€<cn^%^W ^TCioaeo. Fig. 178.—The cloaca separates into a ven-tral and dorsal part. The Wolffian ducts op Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gynecology-s-of-themuscular-abdominal-wall-or-of-the-pelvis-the-thin-epithelial-cloacal-membrane-=-ihntestwie-3acmw==-i-s-wjbcatr-cloaccxv-=-povrvrt-o-3fcmwugg-bucs-j-oloo-co-fig-177common-cloaca-into-which-thegut-and-the-allantois-empty-the-cloacal-mem-brane-reaches-to-the-region-of-the-later-bladderand-urethra-knowledge-of-this-membrane-isimportant-in-understanding-exstrophy-of-thebladder-pankow-mgt-itslubtv-g-yio-cuxxtcvl-jm-f-lltcnw-tcioaeo-fig-178the-cloaca-separates-into-a-ven-tral-and-dorsal-part-the-wolffian-ducts-op-image369823857.htmlRM2CDJX2W–. Gynecology : . s of themuscular abdominal wall or of the pelvis. The thin epithelial cloacal membrane ^=- iHntestwie. 3AcmW== I S *?? ^WjbcAtr CloaccxV =^ povrvrt o^ 3fcmWugg bucs ^j^ (oloo-co, Fig. 177.—Common cloaca into which thegut and the allantois empty. The cloacal mem-brane reaches to the region of the later bladderand urethra. Knowledge of this membrane isimportant in understanding exstrophy of thebladder (Pankow). M«&>—* ItSlub&tv G. ^^ yi:o[{- CUxxtcvl.... Jm f ^^^ l€<cn^%^W ^TCioaeo. Fig. 178.—The cloaca separates into a ven-tral and dorsal part. The Wolffian ducts op
. A dictionary of birds . Tiu. 1. Fig. 2. Reproductive Organs of Pigeon. Fig. 1.—Female, cl^, second cloacal chamber in urodssum ; e^^, inmost cliainljir; I, kidney;l.od, leffc oviduct; l.od, opening of the same into the uvoditum ; l.od, infuudibuluiu;l.od, opening of the same into the body cavity; ov, ovary; r.od, abortive riglit oviduct;ur, ureter ; «/, opening of the same into the urodseum. (About 2/3 of the natural size.After T. J. Parker.) Fig. 2.—Male. 1, 2, 3, the three princiijal lobes of the kidney ; Kji, epididymis ; SR, suprarinalbodies ; T, testes ; u, ureter ; v, vena cava posteri Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-dictionary-of-birds-tiu-1-fig-2-reproductive-organs-of-pigeon-fig-1female-cl-second-cloacal-chamber-in-urodssum-e-inmost-cliainljir-i-kidneylod-leffc-oviduct-lod-opening-of-the-same-into-the-uvoditum-lod-infuudibuluiulod-opening-of-the-same-into-the-body-cavity-ov-ovary-rod-abortive-riglit-oviductur-ureter-opening-of-the-same-into-the-urodseum-about-23-of-the-natural-sizeafter-t-j-parker-fig-2male-1-2-3-the-three-princiijal-lobes-of-the-kidney-kji-epididymis-sr-suprarinalbodies-t-testes-u-ureter-v-vena-cava-posteri-image375277062.htmlRM2CPF9M6–. A dictionary of birds . Tiu. 1. Fig. 2. Reproductive Organs of Pigeon. Fig. 1.—Female, cl^, second cloacal chamber in urodssum ; e^^, inmost cliainljir; I, kidney;l.od, leffc oviduct; l.od, opening of the same into the uvoditum ; l.od, infuudibuluiu;l.od, opening of the same into the body cavity; ov, ovary; r.od, abortive riglit oviduct;ur, ureter ; «/, opening of the same into the urodseum. (About 2/3 of the natural size.After T. J. Parker.) Fig. 2.—Male. 1, 2, 3, the three princiijal lobes of the kidney ; Kji, epididymis ; SR, suprarinalbodies ; T, testes ; u, ureter ; v, vena cava posteri
. A dictionary of birds . T.od Eeproductive Organs of Pigeon. Fig. 1.—Female, d, second cloacal chamber in urodaeum; d?, inmost chamber; 7:, kidney;l.od, left oviduct; l.od, opening of the same into the urodEeum ; l.od, iufundibulum;l.od, opening of the same into the body ca^ity; ov, ovary; r.od, abortive right oviduct;ur, ureter ; ur, opening of the same into the urodajum. (About 2/3 of the natui-al size.After T. J. Parker.) Fig. 2.—Male. 1, 2, 3, the three principal lobes of the kidney; Ep, epididymis ; SR, suprarenalbodies ; T, testes ; u, ureter; v, vena cava posterior ; v.d, vas deferens Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-dictionary-of-birds-tod-eeproductive-organs-of-pigeon-fig-1female-d-second-cloacal-chamber-in-urodaeum-d-inmost-chamber-7-kidneylod-left-oviduct-lod-opening-of-the-same-into-the-urodeeum-lod-iufundibulumlod-opening-of-the-same-into-the-body-caity-ov-ovary-rod-abortive-right-oviductur-ureter-ur-opening-of-the-same-into-the-urodajum-about-23-of-the-natui-al-sizeafter-t-j-parker-fig-2male-1-2-3-the-three-principal-lobes-of-the-kidney-ep-epididymis-sr-suprarenalbodies-t-testes-u-ureter-v-vena-cava-posterior-vd-vas-deferens-image374701556.htmlRM2CNH3JC–. A dictionary of birds . T.od Eeproductive Organs of Pigeon. Fig. 1.—Female, d, second cloacal chamber in urodaeum; d?, inmost chamber; 7:, kidney;l.od, left oviduct; l.od, opening of the same into the urodEeum ; l.od, iufundibulum;l.od, opening of the same into the body ca^ity; ov, ovary; r.od, abortive right oviduct;ur, ureter ; ur, opening of the same into the urodajum. (About 2/3 of the natui-al size.After T. J. Parker.) Fig. 2.—Male. 1, 2, 3, the three principal lobes of the kidney; Ep, epididymis ; SR, suprarenalbodies ; T, testes ; u, ureter; v, vena cava posterior ; v.d, vas deferens
. A dictionary of birds . SR .OW ur ur Fig. 1.. Fig. 2. Reproductive Organs of Pigeon. Fig. 1.—Female. cV^, second cloacal chamber in urodKum; cV, inmost chamber; 7;, kidney;l.od, left oviduct; l.od, opening of the .same into the urodaeum ; l.od, infundibuluni;l.od, opening of the same into the body cavity; ov, ovary; r.od, abortive right oviduct;ur, ureter ; ur, opening of the same into the urodajum. (About 2/3 of tlie natural size.After T. J. Parker.) Fig. 2.—Male. 1, 2, 3, the three principal lobes of the kidney ; Ep, epididymis; SR, suprarenalbodies ; T, testes ; u, ureter; v, vena cava po Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-dictionary-of-birds-sr-ow-ur-ur-fig-1-fig-2-reproductive-organs-of-pigeon-fig-1female-cv-second-cloacal-chamber-in-urodkum-cv-inmost-chamber-7-kidneylod-left-oviduct-lod-opening-of-the-same-into-the-urodaeum-lod-infundibulunilod-opening-of-the-same-into-the-body-cavity-ov-ovary-rod-abortive-right-oviductur-ureter-ur-opening-of-the-same-into-the-urodajum-about-23-of-tlie-natural-sizeafter-t-j-parker-fig-2male-1-2-3-the-three-principal-lobes-of-the-kidney-ep-epididymis-sr-suprarenalbodies-t-testes-u-ureter-v-vena-cava-po-image375008989.htmlRM2CP33P5–. A dictionary of birds . SR .OW ur ur Fig. 1.. Fig. 2. Reproductive Organs of Pigeon. Fig. 1.—Female. cV^, second cloacal chamber in urodKum; cV, inmost chamber; 7;, kidney;l.od, left oviduct; l.od, opening of the .same into the urodaeum ; l.od, infundibuluni;l.od, opening of the same into the body cavity; ov, ovary; r.od, abortive right oviduct;ur, ureter ; ur, opening of the same into the urodajum. (About 2/3 of tlie natural size.After T. J. Parker.) Fig. 2.—Male. 1, 2, 3, the three principal lobes of the kidney ; Ep, epididymis; SR, suprarenalbodies ; T, testes ; u, ureter; v, vena cava po
. Résultats du voyage du S.Y. Belgica en 1897-1898-1899 : sous le commandement de A. de Gerlache de Gomery. Rapports scientifiques publiés aux frais du gouvernement belge, sous la direction de la Commission de la Belgica . ce cloacal individuel des ascidio-zoïdes de C. Racovitzai est énorme, la disposition réaliséerappelant beaucoup celle décrite et figurée par Lahille(25, fig. 72, p. i3i) chez Diplosomoïdes, avec cette diffé-rence que le bord antérieur de lorifice se prolonge, chezColella, en une languette cloacale qui manque chezlascidiozoïde de Lahille. La disposition de C. Racovitzaiest ég Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/rsultats-du-voyage-du-sy-belgica-en-1897-1898-1899-sous-le-commandement-de-a-de-gerlache-de-gomery-rapports-scientifiques-publis-aux-frais-du-gouvernement-belge-sous-la-direction-de-la-commission-de-la-belgica-ce-cloacal-individuel-des-ascidio-zodes-de-c-racovitzai-est-norme-la-disposition-raliserappelant-beaucoup-celle-dcrite-et-figure-par-lahille25-fig-72-p-i3i-chez-diplosomodes-avec-cette-diff-rence-que-le-bord-antrieur-de-lorifice-se-prolonge-chezcolella-en-une-languette-cloacale-qui-manque-chezlascidiozode-de-lahille-la-disposition-de-c-racovitzaiest-g-image371971777.htmlRM2CH4NP9–. Résultats du voyage du S.Y. Belgica en 1897-1898-1899 : sous le commandement de A. de Gerlache de Gomery. Rapports scientifiques publiés aux frais du gouvernement belge, sous la direction de la Commission de la Belgica . ce cloacal individuel des ascidio-zoïdes de C. Racovitzai est énorme, la disposition réaliséerappelant beaucoup celle décrite et figurée par Lahille(25, fig. 72, p. i3i) chez Diplosomoïdes, avec cette diffé-rence que le bord antérieur de lorifice se prolonge, chezColella, en une languette cloacale qui manque chezlascidiozoïde de Lahille. La disposition de C. Racovitzaiest ég
. Text book of zoology. Zoology. 540 Vertebrata. Appendix: Tunieata. tube, their cloacal apertures into the cavity; the water which is taken in at the mouth thus passes into the tube, from the open end of which it is expelled; by means of this exhalent current the colony is driven through the water, with the closed end forwards. The free-swimming Salpa offers a remarkable modification of the Ascidian type. The buccal and cloacal apertures are almost at opposite poles of the body. The branchial sac is, however, very degenerate; its lateral walls are absent, so that, with the exception of the ve Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/text-book-of-zoology-zoology-540-vertebrata-appendix-tunieata-tube-their-cloacal-apertures-into-the-cavity-the-water-which-is-taken-in-at-the-mouth-thus-passes-into-the-tube-from-the-open-end-of-which-it-is-expelled-by-means-of-this-exhalent-current-the-colony-is-driven-through-the-water-with-the-closed-end-forwards-the-free-swimming-salpa-offers-a-remarkable-modification-of-the-ascidian-type-the-buccal-and-cloacal-apertures-are-almost-at-opposite-poles-of-the-body-the-branchial-sac-is-however-very-degenerate-its-lateral-walls-are-absent-so-that-with-the-exception-of-the-ve-image232415976.htmlRMRE3CXG–. Text book of zoology. Zoology. 540 Vertebrata. Appendix: Tunieata. tube, their cloacal apertures into the cavity; the water which is taken in at the mouth thus passes into the tube, from the open end of which it is expelled; by means of this exhalent current the colony is driven through the water, with the closed end forwards. The free-swimming Salpa offers a remarkable modification of the Ascidian type. The buccal and cloacal apertures are almost at opposite poles of the body. The branchial sac is, however, very degenerate; its lateral walls are absent, so that, with the exception of the ve
![. Comparative anatomy. Anatomy, Comparative. REPRODUCTION 91 If "anus" is to be defined as the posterior aperture of the digestive tube—digestive in strict sense—then the term should not be applied to the external opening of the cloaca but rather to the internal aperture between rectum and cloaca. By this definition the proctodeal aperture would ordinarily become the external cloacal opening but in some cases would become an external anus (Teleostei) or an internal anus (frog). If the posterior extremity of the adult mammalian digestive tube includes a remnant of the embryonic cloaca Stock Photo](https://c8.alamy.com/comp/REETJN/comparative-anatomy-anatomy-comparative-reproduction-91-if-quotanusquot-is-to-be-defined-as-the-posterior-aperture-of-the-digestive-tubedigestive-in-strict-sensethen-the-term-should-not-be-applied-to-the-external-opening-of-the-cloaca-but-rather-to-the-internal-aperture-between-rectum-and-cloaca-by-this-definition-the-proctodeal-aperture-would-ordinarily-become-the-external-cloacal-opening-but-in-some-cases-would-become-an-external-anus-teleostei-or-an-internal-anus-frog-if-the-posterior-extremity-of-the-adult-mammalian-digestive-tube-includes-a-remnant-of-the-embryonic-cloaca-REETJN.jpg ". Comparative anatomy. Anatomy, Comparative. REPRODUCTION 91 If "anus" is to be defined as the posterior aperture of the digestive tube—digestive in strict sense—then the term should not be applied to the external opening of the cloaca but rather to the internal aperture between rectum and cloaca. By this definition the proctodeal aperture would ordinarily become the external cloacal opening but in some cases would become an external anus (Teleostei) or an internal anus (frog). If the posterior extremity of the adult mammalian digestive tube includes a remnant of the embryonic cloaca Stock Photo")
. Comparative anatomy. Anatomy, Comparative. REPRODUCTION 91 If "anus" is to be defined as the posterior aperture of the digestive tube—digestive in strict sense—then the term should not be applied to the external opening of the cloaca but rather to the internal aperture between rectum and cloaca. By this definition the proctodeal aperture would ordinarily become the external cloacal opening but in some cases would become an external anus (Teleostei) or an internal anus (frog). If the posterior extremity of the adult mammalian digestive tube includes a remnant of the embryonic cloaca Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/comparative-anatomy-anatomy-comparative-reproduction-91-if-quotanusquot-is-to-be-defined-as-the-posterior-aperture-of-the-digestive-tubedigestive-in-strict-sensethen-the-term-should-not-be-applied-to-the-external-opening-of-the-cloaca-but-rather-to-the-internal-aperture-between-rectum-and-cloaca-by-this-definition-the-proctodeal-aperture-would-ordinarily-become-the-external-cloacal-opening-but-in-some-cases-would-become-an-external-anus-teleostei-or-an-internal-anus-frog-if-the-posterior-extremity-of-the-adult-mammalian-digestive-tube-includes-a-remnant-of-the-embryonic-cloaca-image232666637.htmlRMREETJN–. Comparative anatomy. Anatomy, Comparative. REPRODUCTION 91 If "anus" is to be defined as the posterior aperture of the digestive tube—digestive in strict sense—then the term should not be applied to the external opening of the cloaca but rather to the internal aperture between rectum and cloaca. By this definition the proctodeal aperture would ordinarily become the external cloacal opening but in some cases would become an external anus (Teleostei) or an internal anus (frog). If the posterior extremity of the adult mammalian digestive tube includes a remnant of the embryonic cloaca
. A manual of elementary zoology . Zoology. EMBRYOLOGY 495 operculum, the gill-clefts close, and finally the tail shortens and is absorbed, and the metamorphosis is complete. We have traced the internal development of the embryo „ up to the establishment of the three layers of the body of a triploblastic animal. Only an outline of the further development of these layers can be given. From the epiblast or embryonic ectoderm arise the epidermis, nervous system, sense organs, and lining of the mouth and cloacal opening; from the hypoblast or embryonic endoderm arises the lining of the greater par Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-elementary-zoology-zoology-embryology-495-operculum-the-gill-clefts-close-and-finally-the-tail-shortens-and-is-absorbed-and-the-metamorphosis-is-complete-we-have-traced-the-internal-development-of-the-embryo-up-to-the-establishment-of-the-three-layers-of-the-body-of-a-triploblastic-animal-only-an-outline-of-the-further-development-of-these-layers-can-be-given-from-the-epiblast-or-embryonic-ectoderm-arise-the-epidermis-nervous-system-sense-organs-and-lining-of-the-mouth-and-cloacal-opening-from-the-hypoblast-or-embryonic-endoderm-arises-the-lining-of-the-greater-par-image232122536.htmlRMRDJ2JG–. A manual of elementary zoology . Zoology. EMBRYOLOGY 495 operculum, the gill-clefts close, and finally the tail shortens and is absorbed, and the metamorphosis is complete. We have traced the internal development of the embryo „ up to the establishment of the three layers of the body of a triploblastic animal. Only an outline of the further development of these layers can be given. From the epiblast or embryonic ectoderm arise the epidermis, nervous system, sense organs, and lining of the mouth and cloacal opening; from the hypoblast or embryonic endoderm arises the lining of the greater par
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 194 THOMAS G. WOLCOTT proportional to coelomic pressure. If coelomic pressure were released as Buddington (1937) suggested, inhalation would be impossible. The results obtained with the rubber model (Fig. 6) are entirely consistent with the theoretical predictions. The cloacal suction is clearly proportional to coelomic pressure, and rises strikingly with decreasing cloacal filling (diameter). The suctions attainable at minimum cloacal diameters are remarkable—up to 20 times as large (absolute value) as coelomic pressure. Th Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-biological-bulletin-biology-zoology-biology-marine-biology-194-thomas-g-wolcott-proportional-to-coelomic-pressure-if-coelomic-pressure-were-released-as-buddington-1937-suggested-inhalation-would-be-impossible-the-results-obtained-with-the-rubber-model-fig-6-are-entirely-consistent-with-the-theoretical-predictions-the-cloacal-suction-is-clearly-proportional-to-coelomic-pressure-and-rises-strikingly-with-decreasing-cloacal-filling-diameter-the-suctions-attainable-at-minimum-cloacal-diameters-are-remarkableup-to-20-times-as-large-absolute-value-as-coelomic-pressure-th-image234648283.htmlRMRHN47R–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 194 THOMAS G. WOLCOTT proportional to coelomic pressure. If coelomic pressure were released as Buddington (1937) suggested, inhalation would be impossible. The results obtained with the rubber model (Fig. 6) are entirely consistent with the theoretical predictions. The cloacal suction is clearly proportional to coelomic pressure, and rises strikingly with decreasing cloacal filling (diameter). The suctions attainable at minimum cloacal diameters are remarkable—up to 20 times as large (absolute value) as coelomic pressure. Th
![. Contributions from the Bermuda Biological Station for Research. Biology -- Research. No. 609] MULTIPLICATION IN HOLOTHUBIANS 564 That the oral and cloacal terminations just described do in reality represent regeneration, has been verified by observation of the course of regeneration in the labora- tory after experimentally cutting the holothurians (in various ways (cf. Crozier, 1915&). Certain specimens also have been tabulated as "regenerating"' when their appearance (Fig. 2, c), backed up by dissection, suggested that they had just completed division and had not yet begun to Stock Photo](https://c8.alamy.com/comp/REA5HD/contributions-from-the-bermuda-biological-station-for-research-biology-research-no-609-multiplication-in-holothubians-564-that-the-oral-and-cloacal-terminations-just-described-do-in-reality-represent-regeneration-has-been-verified-by-observation-of-the-course-of-regeneration-in-the-labora-tory-after-experimentally-cutting-the-holothurians-in-various-ways-cf-crozier-1915amp-certain-specimens-also-have-been-tabulated-as-quotregeneratingquot-when-their-appearance-fig-2-c-backed-up-by-dissection-suggested-that-they-had-just-completed-division-and-had-not-yet-begun-to-REA5HD.jpg ". Contributions from the Bermuda Biological Station for Research. Biology -- Research. No. 609] MULTIPLICATION IN HOLOTHUBIANS 564 That the oral and cloacal terminations just described do in reality represent regeneration, has been verified by observation of the course of regeneration in the labora- tory after experimentally cutting the holothurians (in various ways (cf. Crozier, 1915&). Certain specimens also have been tabulated as "regenerating"' when their appearance (Fig. 2, c), backed up by dissection, suggested that they had just completed division and had not yet begun to Stock Photo")
. Contributions from the Bermuda Biological Station for Research. Biology -- Research. No. 609] MULTIPLICATION IN HOLOTHUBIANS 564 That the oral and cloacal terminations just described do in reality represent regeneration, has been verified by observation of the course of regeneration in the labora- tory after experimentally cutting the holothurians (in various ways (cf. Crozier, 1915&). Certain specimens also have been tabulated as "regenerating"' when their appearance (Fig. 2, c), backed up by dissection, suggested that they had just completed division and had not yet begun to Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/contributions-from-the-bermuda-biological-station-for-research-biology-research-no-609-multiplication-in-holothubians-564-that-the-oral-and-cloacal-terminations-just-described-do-in-reality-represent-regeneration-has-been-verified-by-observation-of-the-course-of-regeneration-in-the-labora-tory-after-experimentally-cutting-the-holothurians-in-various-ways-cf-crozier-1915amp-certain-specimens-also-have-been-tabulated-as-quotregeneratingquot-when-their-appearance-fig-2-c-backed-up-by-dissection-suggested-that-they-had-just-completed-division-and-had-not-yet-begun-to-image232563897.htmlRMREA5HD–. Contributions from the Bermuda Biological Station for Research. Biology -- Research. No. 609] MULTIPLICATION IN HOLOTHUBIANS 564 That the oral and cloacal terminations just described do in reality represent regeneration, has been verified by observation of the course of regeneration in the labora- tory after experimentally cutting the holothurians (in various ways (cf. Crozier, 1915&). Certain specimens also have been tabulated as "regenerating"' when their appearance (Fig. 2, c), backed up by dissection, suggested that they had just completed division and had not yet begun to
. Text book of vertebrate zoology. Vertebrates; Anatomy, Comparative. 124 MORPHOLOGY OF THE ORGANS OF VERTEBRATES. ing into the dorsal portion of the cloaca; and then this cloacal region becomes constricted off from the rest to form a urinary- bladder, which is connected directly or indirectly with the ex- terior by a single duct, — the urethra. The bladder persists throughout life in lizards, turtles, and mammals, but disappears in the other amniotes. Reproductive Organs. — To those structures which are to produce the reproductive cells, — eggs and spermatozoa, — the term gonads has been give Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/text-book-of-vertebrate-zoology-vertebrates-anatomy-comparative-124-morphology-of-the-organs-of-vertebrates-ing-into-the-dorsal-portion-of-the-cloaca-and-then-this-cloacal-region-becomes-constricted-off-from-the-rest-to-form-a-urinary-bladder-which-is-connected-directly-or-indirectly-with-the-ex-terior-by-a-single-duct-the-urethra-the-bladder-persists-throughout-life-in-lizards-turtles-and-mammals-but-disappears-in-the-other-amniotes-reproductive-organs-to-those-structures-which-are-to-produce-the-reproductive-cells-eggs-and-spermatozoa-the-term-gonads-has-been-give-image232252817.htmlRMRDT0RD–. Text book of vertebrate zoology. Vertebrates; Anatomy, Comparative. 124 MORPHOLOGY OF THE ORGANS OF VERTEBRATES. ing into the dorsal portion of the cloaca; and then this cloacal region becomes constricted off from the rest to form a urinary- bladder, which is connected directly or indirectly with the ex- terior by a single duct, — the urethra. The bladder persists throughout life in lizards, turtles, and mammals, but disappears in the other amniotes. Reproductive Organs. — To those structures which are to produce the reproductive cells, — eggs and spermatozoa, — the term gonads has been give
. Contributions from the Bermuda Biological Station for Research. Biology -- Research. 563 THE AMERICAN NATURALIST [VOL. LI season of the year seems not to influence the occurrence of regenerating specimens. The criterion of regeneration in these cases consists in the presence of an anterior or posterior terminal part of the body characteristically different in appearance from the normal buccal or cloacal end, the surface being clearly marked off from that of the rest of the body. In typical examples these regenerated ends of the animal are more sharply pointed than is usual; they bear feebly Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/contributions-from-the-bermuda-biological-station-for-research-biology-research-563-the-american-naturalist-vol-li-season-of-the-year-seems-not-to-influence-the-occurrence-of-regenerating-specimens-the-criterion-of-regeneration-in-these-cases-consists-in-the-presence-of-an-anterior-or-posterior-terminal-part-of-the-body-characteristically-different-in-appearance-from-the-normal-buccal-or-cloacal-end-the-surface-being-clearly-marked-off-from-that-of-the-rest-of-the-body-in-typical-examples-these-regenerated-ends-of-the-animal-are-more-sharply-pointed-than-is-usual-they-bear-feebly-image232563901.htmlRMREA5HH–. Contributions from the Bermuda Biological Station for Research. Biology -- Research. 563 THE AMERICAN NATURALIST [VOL. LI season of the year seems not to influence the occurrence of regenerating specimens. The criterion of regeneration in these cases consists in the presence of an anterior or posterior terminal part of the body characteristically different in appearance from the normal buccal or cloacal end, the surface being clearly marked off from that of the rest of the body. In typical examples these regenerated ends of the animal are more sharply pointed than is usual; they bear feebly
. Outlines of zoology. Zoology. DEVELOPMENT. 403 animals. It has been suggested that the sub-neural gland may have some renal function. Reproductive system.—Tunicates are hermaphrodite. The reproductive organs (Fig. 173, G.) are very simple, and lie in the loop of the intestine. The ovary is the larger, and contains a cavity into which the ova are set free, and from which they pass outwards along an oviduct which opens into the cloacal chamber. The testis surrounds the ovary, and is mature at a different time (dichogamy); its NCH E —I. Fig. 175.—Young embryo of Ascidian (Clavelina).—After Van Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/outlines-of-zoology-zoology-development-403-animals-it-has-been-suggested-that-the-sub-neural-gland-may-have-some-renal-function-reproductive-systemtunicates-are-hermaphrodite-the-reproductive-organs-fig-173-g-are-very-simple-and-lie-in-the-loop-of-the-intestine-the-ovary-is-the-larger-and-contains-a-cavity-into-which-the-ova-are-set-free-and-from-which-they-pass-outwards-along-an-oviduct-which-opens-into-the-cloacal-chamber-the-testis-surrounds-the-ovary-and-is-mature-at-a-different-time-dichogamy-its-nch-e-i-fig-175young-embryo-of-ascidian-clavelinaafter-van-image232208149.htmlRMRDNYT5–. Outlines of zoology. Zoology. DEVELOPMENT. 403 animals. It has been suggested that the sub-neural gland may have some renal function. Reproductive system.—Tunicates are hermaphrodite. The reproductive organs (Fig. 173, G.) are very simple, and lie in the loop of the intestine. The ovary is the larger, and contains a cavity into which the ova are set free, and from which they pass outwards along an oviduct which opens into the cloacal chamber. The testis surrounds the ovary, and is mature at a different time (dichogamy); its NCH E —I. Fig. 175.—Young embryo of Ascidian (Clavelina).—After Van
Search Results for Cloacal Stock Photos and Images (492)
Page 2 of 5