636 



CIRCULATORY SYSTEM OF THE DOG 



The dorsal branch assists in forming the rete carpi dorsale. The larger volar 

 branch descends behind the inner border of the carpus and joins the end of the volar 

 interosseous in forming the deep volar arch. From this arch three deep volar 



trai 



Fig. 487. — Vessels and Nerves of Inner Surface 

 OF Shomldek and Arm of Dog. 

 a, b. Brachial artery; c, subscapular vessels; <l, 

 thoracico-dorsal vessels; e, deep brachial vessels; /, sup- 

 erior collateral ulnar vessels; g, brachial vein; /(, A", 

 cephalic vein; /;', niediano-radial vein; (', anterior 

 thoracic nerves; k, nuisculo-cutaneous nerve; /, median 

 nerve; m, ulnar nerve; n, radial nerve; o, thoracico- 

 dorsal nerve; 7, subscapularis muscle; i?, supraspinatus 

 muscle; 3, teres major; 4, latissimus dorsi; 5, deep 

 pectoral muscle; 6, biceps brachii; 7, long head of tri- 

 ceps; S, tensor fasciip antibrachii; 9, internal head of 

 triceps; 10, pronator teres. (Ellenberger-Baum, Anat. 

 d. Hundes.) 



Fig. 488. — Arteries of Forearm of Dog, Inner 

 View. 

 fl, Brachial; a', median; c, common interos- 

 seous; (/, volar antibrachial; e, radial; e', e", dorsal 

 and volar branches of e; /, /', cutaneous branches 

 of e; ii, ulnar; 1, biceps brachii; 2, extensor carpi 

 radialis; ii, pronator teres; 4, deep digital flexor; 

 6, radius; 6, superficial digital flexor; 7, flexor 

 carpi radialis; 8, flexor carpi medius; 9, humerus. 

 (Ellenberger-Baum, Anat. d. Hundes.) 



metacarpal arteries descend in the second, third, and fourth intermetacarpal 

 spaces and concur with the corresponding superficial volar and the dorsal arteries 

 to form the common digitals. 



