FOREARM AND HAND 



Flex. dig. sublim 

 Pronator teres 

 Brachialis ~~^ 

 Flex. poll. long. 

 Biceps brachii 



side. Finally it leaves the 

 forearm by passing deep 

 to the transverse carpal 

 ligament. A small artery, 

 the a. mediana, a branch of 

 thevolar interosseous artery, 

 accompanies the median 

 nerve. Sometimes this vessel 

 attains a considerable size. 



As the median nerve 

 enters the forearm it gives 

 off numerous branches for 

 the supply of muscles, and 

 near the wrist it supplies 

 a palmar branch, which has 

 already been dissected (p. 

 70). 



The muscular branches 

 supply all the muscles which 

 spring from the medial 

 epicondyle of the humerus, 

 with the single exception of 

 the flexor carpi ulnaris; viz., 

 the pronator teres, the flexor 

 carpi radialis, the palmaris 

 longus, and the flexor digi- 

 torum sublimis. 



It supplies also a long 

 slender twig volar inter- 

 osseous nerve which goes 

 to the deep muscles on the 

 volar aspect of the fore- 

 arm. 



Deep Structures on the 

 front of the Forearm. 

 The connections of the 

 deep muscles must now be 

 studied. 



The flexor digitorum pro- 

 fundus is the large muscle 

 which clothes the volar and 

 medial surfaces of the ulna; the flexor pollicis iongus is placed 

 i 10 a 



FIG. 64. Volar aspect of Bones of 

 Forearm with Muscular Attachments 

 mapped out. 



