594 



THE VEINS 



cervical panniculus, and opens into the terminal part of the jugular or the brachial 

 vein. It receives an accessory cephalic vein (V. cephalica accessoria), which arises 

 from the carpal network, runs upward along the inner border of the extensor carpi, 



Fig. 466 — Dissection of Pectoral Region and Anterior Part of Abdominal Wall of Horse. 

 1, Jugular vein; 2, loose connective tissue of axillary space; S, ascending branch of inferior cervical artery; 

 4, descending branch of same; 5, cephalic vein; 6, median nerve; 7, ulnar nerve; S, brachial artery; 9, brachial 

 vein; 10, external thoracic or "spur" vein; 11, anterior abdominal artery and vein; 12, branches of sixth cervical 

 nerve; 13, cutaneous branch of axillary nerve; 14, cutaneous branch of musculo-cutaneous nerve; 15, cervical 

 panniculus; 16, sterno-cephalicus; 17, scalenus; IS, mastoido-humeralis; 19, anterior superficial pectoral; 20, 

 posterior superficial pectoral; 21, anterior deep pectoral; 22, posterior deep pectoral; 2S, abdominal panniculus; 

 24, obliquus abdominis externus; 25, rectus abdominis; 26, coraco-brachialis; 27, tensor fasciae antibrachii; 

 a, prescapular lymph glands; h, prepectoral lymph glands; c, axillary lymph glands; d, cubital lymph glands; 

 ex., xiphoid cartilage. (After Schmaltz, Atlas d. Anat. d. Pferdes.) 



turns along the lower border of the brachialis, passes under the superficial tendon 

 of the biceps and joins the cephalic. 



