THE LIMBS OF THE HORSE 



23 



humeral artery accompanies the axillary nerve round the back of 

 the shoulder joint. In the dissection of the lateral aspect of the 

 shoulder it will be found under the deltoid muscle. 



>'). A. circumflexa scapulcc. — The circumflex artery of the scapula 

 leaves the subscapular a short distance beyond the point of origin 

 of the posterior circumflex. A branch is given to the subscapular 



V. circumflexa scapiil.'c 

 V. jiigularis. 



V. axillaris. 

 V. tlioracoacroniialis. 



V. cephalica brachii. - 



V. ciicumflexa humeri 

 anterior. 



V. collateralis radialis 



V. cephalica acceasoria. 

 V. cephalica antibrachii, 



V. subscapularis. 



\'. circumflexa humeri posterior. 



\'. thorocodorsalis. 

 V. thoracica externa. 



V. profunda brachii. 

 V. brachialis. ■ 

 V. collateralis ulnaris. 



- - V. mediana. 



\ . nietacarpea volaris lateralis. 

 V. metacarpea volaris profunda. 

 V. digitalis communis. 



Fig. 12. — Diagram of the Veins of the Thoracic Limb. 



muscle, after which the artery pierces the origin of the long head 

 of the triceps and bends round the axillary border of the scapula 

 to enter the infraspinous fossa. Eami supply the infraspinous, teres 

 minor, and supraspinous muscles, and terminal twigs reach the skin 

 in the acromial region. The nutrient artery of the scapula is furnished 

 by the circumflex scapular. 



4, A number of inconstant muscular branches (rami musculares) 

 are supplied to the subscapular, teres major, and triceps muscles. 



