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 . 



i5up. ext. cutaneous br. niusculo-spiral- 



Inf. ext. cutaneous br. musculo-spiral- 



Median nerve 

 Brachial artery 



Edge of triceps 



-Ulnar nerve 



-Inferior profunda artery 



Musculo-cutaneous nerve, ant. and 



post. brs. 



Musculo-spiral nerve- 

 Posterior interosseous nerve- 



Radial nerve- 

 Supinator brevis- 



Pronator radii teres. 



Extensor carpi rad. long^ior- 

 Extensor carpi rad. breviorj 



Radial artery. 



Brachio-radialis. 

 Flexor subl. digitorum 

 radial head" 



Flexor carpi radialis- 



Median nerve- 



Palmar cutaneous br. of median - 



Abductor pollicis- 

 Digital brs. of median nerve- 



ilM 



^; 



1: 



V'' 



Brachialis anticus 



Biceps tendon 



Pronator radii teres, humeral head 

 Articular branches of median ner\'e 



 Flexor cami radialis 



• Flexor sublimis digitorum 



 LMnar 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 



kM 



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 



