palmar branch of ulnar nerve

(redirected from Deep palmar branch)

pal·mar branch of ul·nar nerve

branch of ulnar nerve arising in distal forearm and accompanying palmar artery into hand, where it supplies skin of little finger and medial half of ring finger and adjacent parts of palm.
References in periodicals archive ?
The deep palmar arch, usually completed by the deep palmar branch of the ulnar artery, gives rise to three palmar metacarpal arteries that join the common palmar digital arteries off the superficial arch.
In the most distal aspect of this zone, the radial artery divides into four branches which anastomose with similar branches of the ulnar artery, providing the vascularization of the hand: (1) the carpal palmar branch anastomoses with a similar branch of the ulnar artery; (2) the superficial palmar branch, which together with the main trunk of the ulnar artery, forms the superficial palmar arch, that gives the four common digital palmar arteries, (3) the dorsal carpal branch, with a similar ulnar branch, forms the dorsal carpal arch that gives rise to the dorsal metacarpal arteries, and (4) the termination of the RA itself anastomoses with the deep palmar branch of the ulnar artery to form the deep palmar arch.
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