. The anatomy of the domestic animals . Veterinary anatomy. 638 BLOOD-VASCULAR SYSTEM OF THE HORSE In some cases the thyroid and laryngeal arteries arise from the carotid separately or by a short common stem. A laryngeal branch is often detached from the carotid in front of the thyro- laryngeal and enters the larjTix with the anterior laryngeal nerve. The pharyngeal branch fre- quently comes directly from the Fig. 558.âDeep Dissection of Neck of Hohse. a, a, Ends of sterno-cephalicus; 6, anterior part of omo-hyoideus; c, sterno-thyro-hyoideus; d, trachea; e, oesopha- gus; /, carinifo
. The anatomy of the domestic animals . Veterinary anatomy. 638 BLOOD-VASCULAR SYSTEM OF THE HORSE In some cases the thyroid and laryngeal arteries arise from the carotid separately or by a short common stem. A laryngeal branch is often detached from the carotid in front of the thyro- laryngeal and enters the larjTix with the anterior laryngeal nerve. The pharyngeal branch fre- quently comes directly from the Fig. 558.âDeep Dissection of Neck of Hohse. a, a, Ends of sterno-cephalicus; 6, anterior part of omo-hyoideus; c, sterno-thyro-hyoideus; d, trachea; e, oesopha- gus; /, cariniforEa cartilage; g, rectus cap. ventrahs major; h, stump of longissimus atlantis; i, intertransversales; fc, multifidus; I, m, scalenus; n, serratus cervicis; o, o, stumps of splenius; p, longissimus cervicis; q, complexus (most of â which is removed); r, rhomboideus; s, trapezius; t, spinalis et semispinahs; u, lamellar part of lig. nuchte; v, brachio- cephahcus; w, anterior deep pectoral; x, supraspinatus; y, anterior superficial pectoral; z, tuber scapulae; i, i, articular processes of cervical vertebrEc; 2, 2, transverse processes of same; 3, atlas; 5', axis; 4- A, jugular vein (remainder re- moved) ; 5, common carotid artery, from which a piece is removed to show the accompanying nerves and the oesophagus; 6, vago-sympathetic trunk; 7, 7, tracheal and muscular branches of carotid artery; 8, recurrent nerve; 10, left tracheal lymph-duct; 11, 12, ascending and descending branches of inferior cer\'ical artery {13); 14, cephalic vein; 15-20, ven- tral branches of second to seventh cervical nerves; 21, roots of phrenic nerve; 22, pectoral nerves; 22', nerve to ser- ratus ventralis; ^3, musculo-cutaneous nerve; ^4, median nerve; ^5, ulnar nerve; ^ff, radial nerve; ^7, axillary nerve; 2S, dorsal branches of cervical nerves; 28', accessory nerve (cut); 29, deep cervical artery; 30, muscular branch of ver- tebral artery; 31, posterior branch of occipital artery; 32, vertebral arter
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