1036 



THE NERVE 8YXTEM 



muscle nearly as far as the elbow. This filament lies a little external to the 

 common trunk, from which it arises. It passes down the inner side of the arm, 



External anterior thoracic. 



Internal anterior thoracic. 



' v \ 



\ - Viixctdocutaneous. 



New terms. 



Old terms. 



Intercostohumeral = Intercostobrachial. 



Posterior thoracic = Long thoracic. 



Nerve of Wrisberg = Medial cutaneous nerve of upper arm. 



(N. cutaneus brachii medialis.) 

 Internal cutaneous = Medial nerve of forearm. 



(N. cutaneus antebrachii medialis.) 



FIG. 764. Nerves of the left upper extremity. 



