650 



NERVES OF THE UPPER LIMB. 



Fig. 430. Fig. 431. 



10 



Fig. 430. DEEP VIEW OP THE ANTERIOR NERVES OP THE SHOULDER AND ARM (from 

 Sappey aiter Hirschfeld and Leveille). | 



1, musculo-cutaneous nerve ; 2, its twig to the coraco-brachialis muscle ; 3, its branch 

 to the biceps; 4, its branch to the brachialis anticus ; 5, twig of union with the median 

 nerve (a variety) ; 6, continuation of the nerve in its cutaneous distribution ; 7, musculo- 

 spiral nerve in the interval between the brachialis anticus and supinator longus ; 8, inferior 

 external cutaneous branch of the musculo-spiral ; 9, the internal cutaneous and small 

 internal cutaneous nerves divided ; 10, anterior branch of the internal cutaneous; 11, 

 median nerve ; to the inside the ulnar nerve is crossed by the line from 11. 



Fig. 431. DEEP VIEW OP THE ANTERIOR NERVES OF THE FOREARM AND HAND (from 

 Sappey after Hirschfeld and Leveille). 



12, the median nerve ; 13, its branches to the pronator teres ; 14, branch to the super- 

 ficial flexor muscles, which have been removed ; 15, branch to the flexor digitorum pro- 

 fund us ; 16, branch to the flexor longus pollicis ; 17, anterior interosseous branch; 18, 

 cutaneous palmar branch cut short; 19, branches to the short muscles of the thumb ; 

 20, 21, collateral branches to the thumb; 22, 23, 24, collateral branches to the second, 

 third, and fourth fingers ; 25, branch given by the ulnar nerve to the flexor carpi ulnaris ; 

 26, branch to the flexor digitorum profundus ; 27, cutaneous communicating twig ; 28, 

 dorsal branch of the ulnar ; 29, superficial palmar branch ; 30, 31, collateral branches 

 to the fourth and fifth fingers ; 32, deep palmar branch ; 33, its branch to the short 

 muscles of the little finger ; 34, 35, 36, twigs given by the deep branch of the ulnar to 

 the third and fouith lurnbricales, all the interossei, and the adductor pollicis. 



