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-^ ,, , ~'~~' \ 



^^^. ^' \ 



7n. supraspinaZm^ 



\ / 



\ 



\ , 

 n. suprascapiUaris \ . . ' n. '' v 



\ ' ' li '/. '^^ 



; >■. \ I ^ '' y, --;gr'^nn. stibscapulares 



m. pectorcUis profutidiis \ X * [ " t S'-^-"^^'" 



^^ '■■.■■' ^v^ , /--"I "I-^"'''' "-" '^^- '^^^s major 



\;i ,' ijj^ ^ I \ t" ■-"^'* ^^-n.thoraco-dorsalis 



n. axillaris -^t-lL £^ w \i ^-""'^ -, 



f 1 ,>jV"~-..^_'^ I V ,--"' ^a. suoscapidaris 



n. musculo-cuianeus -?.' -Vc:i=4J\/^^^=^^^^^ - ""■ ^"^issimus dorsi 



a. axillaris ,, ^ / wt ^' ^'^^^^^^ 



_ , lSn\. ■ ^' pTofunda hrachii 



in. orachio-cephalicus '- OTBVN. "" — ~ 



W^^^t 11 ^-\ m. tensor fascix antibrachii 



n. musculo-cutaneus "" !^ "wt- ---^-— ' ^' "^"'^"* 



— --■ ^^ Wl '~'- — "^* i^ceps brachii. Caput longum 



m. pectoTolis superfidalis ^-^"'^ »\ 'I 



^^^-"^ >^\ r^ m. triceps Irachii. Caput mediate 



m.'biceps hrachii '"" l\^^ , „ ,„77 ,_ 7- , 



_l V _^^ B. coUaterahs ulnans 



a. hrachialis " — -"'l''' )ll^''^'fe^ 



n.-medianuS""'" -'''H^ll ■ \™ i 



a. collateralis radialis^^'''^ jj \ /] il 



proximalis — -■""H ' I At 



n. radialis supeTficialis^-"'" -«'" // /fil 



m. extensor carpi radialis.^ -"^ M"'^'' I 



m. pronator teres ^-"^'^ I / ^"^'^ — ■■"■ ^^^^'^ ^«^?*" ™'^'«^^"* 



a. radialis. I /I ' ^- ^^^"^ digitorum suUimis 



luf I : , ^' in. flexor digitoTum profundus 



\ il 7 1 ~ ■"• "^"^^" 



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 



