THE BRACHIAL PLEXUS. 



1299 



which separates the nerve from the ulnar artery. It follows a straight course down 

 the forearm, accompanied by the median artery, lying upon the flexor profundus 



FIG. 1095. 



Deltoid 



Sup. ext. cutaneous br. musculo-spiral 

 Inf. ext. cutaneous br. musculo-spiral 



Musculo-cutaneous nerve, ant. and 

 post, b: 



Musculo-spiral nerve 

 Posterior interosseous nerve. 



Radial ner 

 Supinator brev 



Pronator radii ter 

 Extensor carpi rad. longic 

 Extensor carpi rad. brevii 



Radial arte 



Brachio-radial 

 Flexor subl. digitonu 



radial head" 



Flexor carpi radialis- 



Mediati nerve- 

 Palmar cutaneous br. of median- 

 Abductor pollicis 

 Digital brs. of median nerve 



- Median nerve 



- Brachial artery 



Edge of triceps 



-Ulnar nerve 



-Inferior profunda artery 



^H Brachialis anticus 



Biceps tendon 



Pronator radii teres, humeral head 

 Articular branches of median nerve 



Flexor carpi radialis 



Flexor sublimis digitorum 



Ulnar nerve 



Ulnar artery 



Flexor profundus digitorum 



Flexor carpi ulnaris 



Palmar cutaneous br. of ulnar 



Dorsal cutaneous br. of ulnar nerve 



Flexor sublimis digitorum 



-Pisiform bone 

 Deep br. of ulnar nerve 

 Palmaris brevis, reflected 

 -Abductor minimi digiti 



Flexor brevis minimi digiti 

 Digital brs. of ulnar nerve 



Dissection of right upper extremity, showing nerves of anterior surface; anterior annular ligament has been 

 cut away to show median nerve and flexor tendons. 



digitorum and covered by the flexor sublimis digitorum. Near the wrist the 

 median becomes more superficial, with the tendons of the flexor sublimis digitorum 



