THE HAND 85 



(C. 8 and T. i) ; those of the middle and index fingers, by the 

 median nerve (C. 8 and T. i). 



The Ulnar Nerve divides into superficial and deep branches 

 opposite the hook of the hamate bone. The former supplies 

 digital branches to the little finger and to the ulnar side of the 



Volar radial a. of index '-,, 

 Digital branch of median n. 



A. princeps pollicis 

 Branch to muscles of thuml 



4; Digital arteries 



Superficial volar 

 - arch 



' Deep volar arch 

 " and deep branch 



of ulnar nerve 



Ulnar artery 

 Ulnar nerve 



A. superficialis \O\BS 



Os multangulum majus -^ 



Radial artery ~^|j 

 Median ne 



FIG. 30. The Positions of the Vessels and Nerves Relative to the Bones 

 of the Hand and Wrist. 



ring finger. The latter supplies the muscles of the hypothenar 

 eminence and runs transversely across the palm to end in the 

 oblique head of the adductor pollicis. In its course it accom- 

 panies the deep volar arch (p. 92), and lies behind the 

 flexor tendons and in front of the interossei and the proximal 

 ends of the middle three metacarpals. In addition to the 

 muscles already mentioned, it supplies all the interossei, the 



6ft 



