652 



BLOOD-VASCULAR SYSTEM OF THE HORSE 



Anterior deep 



pectoral mu^cli 



Suprascapular 



artery 



Posterior deip pi cto- 



ral muscle 



Tendon of cutaneus 



Xerve to biceps 



Anterior circtunflex 



artery 



Anterior superficial 



pectoral muscle 



Extensor carpi radialis 



Radius 

 Accessory cephalic run 



Elbow joint 

 Flcxoi cai pi 

 vlnnris 



Fli !o> eai pi 

 inilinhs 

 Medial hqa- 

 tnint of elbow 

 joint 



Fig. 566. — Dissection of Shottldek and Arm of Horse; Medi-\l Surface. 

 A, Brachial artery, the stump of which has been turned backward; B, subscapular artery; C, thoraco-dorsal 

 artery; D, deep brachial artery; E, ulnar arter\-; F, anterior radial arterj'; C, median artery; //, stump of brachial vein; 

 J, external thoracic vein; /, brachial vein, part of which has been removed to expose deep brachial artery; K, K, K, 

 median veins; L, cephalic vein; L' , communicating vein: M, brachialis muscle; A', medial epicondyle of hu- 

 merus; 0, prescapular lymph glands; P, indicating position of axillary lymph glands, should be dorsal to vein; Q, posi- 

 tion of cubital lymph glands; 1, suprascapular nerve; 2, subscapular nerves: 3, thoraco-dorsal nerve; 4. musculo- 

 cutaneous nerve; 4', cutaneous branch of musculo-cutaneous nerve; 5, median nerve; f?, axillary nerve; 7, ulnar nerve ; 

 7', cutaneous branch of ulnar nerve; 8, radial nerve; 0, thoracic nerves. The vein at the elbow which lies in front of the 

 median artery should be shown crossing over the median nerve and the median and ulnar arteries, as in the next figure. 

 (After Schmaltz, Atlas d. Anat. d. Pferdes.) 



