THE BRACHIAL ARTERY 



557 



Anterior deep 

 ■pectoral muscle 



Suprascapuhir 

 artery 



Posterior deep pecto- 

 ral muscle 

 Tendon of panniculus 

 Nerve to biceps 

 Anterior circumflex 

 artery 

 Anterior superficial 

 pectoral muscle 



Extensor carpi radialis 

 Radius 



Accessory cephalic vein 



ElboiL joint 

 Flexor carpi 

 medius 

 Flexor carpi 



iijtcrnus 

 Internal lateral 

 ligament of 

 elbow joint 



Fig. 441. — Dissection of Shoulder and Arm of Horse, Inner Surface. 

 A, Brachial artery; B, subscapular artery; C, thoracico-dorsal artery; D, deep brachial artery; E, ulnar 

 artery; F, anterior radial artery; G, posterior radial (or median) artery; H, brachial vein; /, external thoracic 

 (or "spur") vein; J, brachial vein; K, K, K, posterior radial veins; L, cephalic vein; U, communicating vein; 

 M, brachialis muscle; N, internal epicondyle of humerus; O, prescapular lymph glands; P, position of axillary 

 lymph glands; Q, position of cubital lymph glands; .?, suprascapular nerve; ^, subscapular nerves; 3, thoraco- 

 dorsal nerve; 4, musculo-cutaneous nerve; 4', cutaneous branch of musculo-cutaneous nerve; 5, median nerve; 

 6, axillary nerve; 7, ulnar nerve; 8, radial nerve: 9, thoracic nerves. (After Schmaltz, Atlas d. Anat. d. Pferdes.) 



