. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. VISION. 561 tudinal section. Other specimens may be dissected witli and without the use of water.. Fi9. 404.—Certain parts of eye. 1 x 10. (After Sappey.) 1,1, crystalline lens; 2, hyaloid membrane ; 3, zonule of Zinn; 4, iris; 5, a ciliary process; 6, radiating fibers of ciliary muscle; 7, section of circular portion of ciliary muscle ; 8, venous plexus of ciliary mus- cle ; 0,10, sclerotic coat; 11,12, cornea; 13, epithelial layer of cornea; 14,

- Image ID: RE3T52
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. VISION. 561 tudinal section. Other specimens may be dissected witli and without the use of water.. Fi9. 404.—Certain parts of eye. 1 x 10. (After Sappey.) 1,1, crystalline lens; 2, hyaloid membrane ; 3, zonule of Zinn; 4, iris; 5, a ciliary process; 6, radiating fibers of ciliary muscle; 7, section of circular portion of ciliary muscle ; 8, venous plexus of ciliary mus- cle ; 0,10, sclerotic coat; 11,12, cornea; 13, epithelial layer of cornea; 14,
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Image ID: RE3T52
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. VISION. 561 tudinal section. Other specimens may be dissected witli and without the use of water.. Fi9. 404.—Certain parts of eye. 1 x 10. (After Sappey.) 1,1, crystalline lens; 2, hyaloid membrane ; 3, zonule of Zinn; 4, iris; 5, a ciliary process; 6, radiating fibers of ciliary muscle; 7, section of circular portion of ciliary muscle ; 8, venous plexus of ciliary mus- cle ; 0,10, sclerotic coat; 11,12, cornea; 13, epithelial layer of cornea; 14, Descemet's membrane ; 15, pectinate ligament of iris ; 16, epithelium of membrane of Descemet; 17, union of sclerotic coat with cornea ; 18, section of canal of Schlemm, Assuming that some such work has been done, and that the student has become quite familiar with the general structure of the eye, we call attention specially to the strength of the sclerotic coat; the great vascularity of the choroid coat and its terminal ciliary processes, its pigmented character adapting it for the absorption of light; the complicated structure and pro- tected position of the retinal expansion. It may be said that the whole eye exists for the retina, and that the entire mechan- ism besides is subordinated to the formation of images on this nervous expansion. The eye of the mammal may be regarded as an arrangement of refracting media, protected by coverings, with a window for the admission of light, a curtain regulating the quantity admitted; a sensitive screen on which the images are thrown; surfaces for the absorption of superfluous light; S6. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Mills, Wesley, 1847-1915. New York, D. Appleton

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