Operative surgery . Fig. 1273.—Oiierations on thelarynx. Z. Ilvoid bone. Sch.Thyroid caitilage. i?. Cricoidcartilage. T7i. Outline of thethyroid gland. /. Subhyoidjiharyngotoniy. //. Thy-Iotomy. ///. Infrathyroidlaryngotomy. IV. Cricot-oiny. V. High tracheotomy.YI. Low tracheotomv. 1066 OPERATIVE SURGERY.. Fig. 1274.—Opening the trachea. sternum ; divide the fascia ou a director ; cautiously separate and pull asidethe sterno-thyroid and sterno-liyoid muscles, thus exposing the deeper cervi-cal fascia, beneath which are located the inferior thyroid veins (Fig. 1269),supported by connective tiss

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Operative surgery . Fig. 1273.—Oiierations on thelarynx. Z. Ilvoid bone. Sch.Thyroid caitilage. i?. Cricoidcartilage. T7i. Outline of thethyroid gland. /. Subhyoidjiharyngotoniy. //. Thy-Iotomy. ///. Infrathyroidlaryngotomy. IV. Cricot-oiny. V. High tracheotomy.YI. Low tracheotomv. 1066 OPERATIVE SURGERY.. Fig. 1274.—Opening the trachea. sternum ; divide the fascia ou a director ; cautiously separate and pull asidethe sterno-thyroid and sterno-liyoid muscles, thus exposing the deeper cervi-cal fascia, beneath which are located the inferior thyroid veins (Fig. 1269),supported by connective tiss Stock Photo
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Operative surgery . Fig. 1273.—Oiierations on thelarynx. Z. Ilvoid bone. Sch.Thyroid caitilage. i?. Cricoidcartilage. T7i. Outline of thethyroid gland. /. Subhyoidjiharyngotoniy. //. Thy-Iotomy. ///. Infrathyroidlaryngotomy. IV. Cricot-oiny. V. High tracheotomy.YI. Low tracheotomv. 1066 OPERATIVE SURGERY.. Fig. 1274.—Opening the trachea. sternum ; divide the fascia ou a director ; cautiously separate and pull asidethe sterno-thyroid and sterno-liyoid muscles, thus exposing the deeper cervi-cal fascia, beneath which are located the inferior thyroid veins (Fig. 1269),supported by connective tiss
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Operative surgery . Fig. 1273.—Oiierations on thelarynx. Z. Ilvoid bone. Sch.Thyroid caitilage. i?. Cricoidcartilage. T7i. Outline of thethyroid gland. /. Subhyoidjiharyngotoniy. //. Thy-Iotomy. ///. Infrathyroidlaryngotomy. IV. Cricot-oiny. V. High tracheotomy.YI. Low tracheotomv. 1066 OPERATIVE SURGERY.. Fig. 1274.—Opening the trachea. sternum ; divide the fascia ou a director ; cautiously separate and pull asidethe sterno-thyroid and sterno-liyoid muscles, thus exposing the deeper cervi-cal fascia, beneath which are located the inferior thyroid veins (Fig. 1269),supported by connective tissue. This fascia should be torn asunder by a blunt instrument, and pushed asidealong with the veins and connectivetissue beneath, which will expose thetrachea. The bluntends of two ordinarydirectors can be util-ized for separatingthe fascia, or instru-ments especially de-vised for dry dissec-tions can be employed (Fig. 42).Throughout the entire operation thetissues must be drawn asunder as fastas separated, by means of blunt hooksor other form of retractors, to affordample exposure of each succeedingpart. As soon as the trachea is reached,and all haemorrhage checked, it isseized by one or two hooks—the doublehook of Langenbeck (Fig. 1271) being the best—drawn forward to near thesurface of the