deep branch of the ulnar nerve
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deep branch of the ul·nar nerve[TA]
accompanies deep palmar branch of ulnar artery and deep palmar arch to supply wrist joint, lumbricals 3 and 4, palmar and dorsal interossei adductor pollicis, and deep head of flexor pollicis brevis muscles.
Synonym(s): ramus profundus nervi ulnaris [TA]