. The anatomy of the domestic animals. Veterinary anatomy. 636 BLOOD-VASCULAR SYSTEM OF THE HORSE laterally to the vagus and recurrent nerves. It is commonly two or three inches (ca. 5-7 cm.) in length, but it may vary between one and eight inches (ca. 20 cm.).' The right common carotid artery (A. carotis communis dextra) passes obliquely from the ventral face of the trachea to its right side and continues in this position, but inclines toward the dorsal surface of the trachea near its termination. It. Fig. 556.—Vessels and Nerves of Neck of Horse. a, Brachiocephalicus; 6, sterno-cephaiic
. The anatomy of the domestic animals. Veterinary anatomy. 636 BLOOD-VASCULAR SYSTEM OF THE HORSE laterally to the vagus and recurrent nerves. It is commonly two or three inches (ca. 5-7 cm.) in length, but it may vary between one and eight inches (ca. 20 cm.).' The right common carotid artery (A. carotis communis dextra) passes obliquely from the ventral face of the trachea to its right side and continues in this position, but inclines toward the dorsal surface of the trachea near its termination. It. Fig. 556.—Vessels and Nerves of Neck of Horse. a, Brachiocephalicus; 6, sterno-cephaiicus; c, omo-hyoideus; (/, sterno-thyro-hyoideus; c, trachea; /, position of cariniform cartilage: g, anterior superficial pectoral muscle; h, scalenus; i, intertransversales; k, insertion of serratua cervicis: /. remnant of trapezius; m, rhomboideus; n. splenius; o, complexus; p, g, longissimus capitis et atlantis; p\q\ tendons of same; r, longissimus; s, obliquus capitis posterior; /, wing of atlas; u, parotid gland; v, supraspinatus; w, anterior deep pectoral; x, spine of scapula; y, prescapular lymph glands; 1, external maxillary vein; .g, 3, jugular vein; 4, carotid artery, exposed by drawing jugular vein aside; 5, 6, ascending and descending branches of inferior cervical artery; 7, cephalic vein; S, branches of deep cervical artery; 9-14, ventral branches of second to seventh cervical nerves; 15, branches of dorsal divisions of cervical nerves. (EUenberger-Baum, Top. .\nat. d. Pferdes.) divides at the crico-pharyngeus muscle and under cover of the mandibular gland into external carotid, internal carotid, and occipital It is enclosed in a fibrous sheath, and is accompanied dorsally by the vagus and sympathetic nerves, ventrally by the recurrent nerve. In the posterior part of the neck it is in contact ' In very rare cases there is no truncus bicaroticus. The two carotid arteries then arise separately from the brachiocephahc, the left one first, and the right one
Size: 1434px × 1743px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphiladelphialondon
