DISSECTION OF THE DOG 



121 



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

 prolongation from the shoulder-joint. 



m. subscapularis 

 m. supraspinatus^ 



Ji. suprascapular 



m. pectoralis profundus 



it. axillaris 

 n. musculo-cutaneus 



a. axillaris 



m. orachio-ceplialicus 



n. musculo-cutaneus 



m. pectoralis superficialis 



m. biceps brachii "" 

 a. brachialisr 

 n. medianus <*•*"" 



w. collateralis radialis „--■-'"" 

 proxtmalis 



n. radialis super ficialis^-^"' 

 m. extensor carpi radialis.^ - *" 



m. pronator teres -*-""" 



u. radialis. _, 



. nn. svfoscapulares 



m. teres major 



■it. tit&racQ-dorsalis 

 , a. subscapularis 



m. latissimus dorsi 



n. radialis 



a. profunda bracliii 



m. tensor fascia? antibrachii 

 n. ulnaris 



m. triceps brachii. Caput longum 

 m. triceps brachii. Caput mediale 

 u. collateralis ulnaris 



(*). 



m. flexor carpi radialis 

 - m. flexor digitorum sublimit 



m. flexor digitorum profundus 



Fia. 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. cobaco-brachiaus. — This is a small muscle lying in a depression 



