DISSECTION OF THE DOG 



121 



humerus by a transverse band of fascia and is surrounded by a synovial 

 prolongation from the shoulder- joint. 



m. subscapidaris^ 



m. supraspinatus^ 



n. suprascavularis \ 



\ \ 

 v \ 



m. pectoralis profundus 



n. axillaris - 



n. musculo-ciUaneus 



a. axillaris 

 m. brachio-cephalicus — 



n. musculo-cutaneus 



m. pectoralis superficialis 



m. biceps brachii' 



a. brachialis' 

 n. medianus ~- 



a. collateral-is radialis^. 

 proximalis 



n. radialis superficialis - 

 m. extensor carpi radialis, 



m. pronator teres 



a. radialis. 





z .^ f >' nn. subscapulars 

 _ _ ^ in. teres major 

 __ , _ n. thoraco-dorsalis 

 __ _ a. subscapularis 



____»«. latissimus dorsi 



n. radialis 



a. profunda brachii 



m. tensor fascia? antibrachii 



n. ulnaris 



m. triceps brachii. Caput longum 



in. triceps brachii. Caput mediate 



_^ «. collateralis ulnaris 



■ »i. flexor carpi radialis 

 m. flexor digitorum sublimis 



in. flexor digitorum profundus 



-,«. ulnaris 



Fig. 46. — Dissection of the medial aspect of the shoulder, arm, and forearm. 



The tendon of insertion of the biceps is double. The stronger part is attached 

 to the tuberosity of the ulna ; the weaker to the tuberosity of the radius. 

 M. coraco-bbachialis. — This is a small muscle lying in a depression 



