THE MUSCLES OF THE UPPER EXTREMITY. 



89 



FlG. 32. Anterior aspect of a number of muscles of the upper extremity, and 

 more particularly designed to show in situ the pectoralis sccundus 

 and tertius, and the biceps. The pectoralis major has been almost en- 

 tirely removed, a, the end of cut tendon of pectoralis sccundus ; b, 

 its humeral stump ; c, the humeral stump of the pectoralis major. 

 Life-size, from an adult female Raven, by the author, from his own 

 dissections. 



rounded margin of the scapula, posterior to the origin 

 of the long head of the triceps, for about the anterior 



