594 



THE VEINS 



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

 vein. It receives an accessory cephalic vein (\'. ce])lialiea accessoria), which arises 

 from the carpal network, runs upward along the inner l)order of the extensor carpi, 



Fig. 466 — Dissf:cTioy of Pectoral Reoion and Anterior Part of Abdominal Wall of Horse. 

 1, Jugular vein; 2, loose connective tissue of axillary space; 3, ascending branch of inferior cervical artery; 

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

 vein; 10, external thoracic or "spur" vein; 11 , anterior abdominal artery and vein; 13, 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; 23, abdominal panniculus; 

 24, obUquus 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. 



