Deep branch of ulnar nerve

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Nerve: Deep branch of ulnar nerve
Superficial palmar nerves. (Deep branch of ulnar labeled at center right.)
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Latin	ramus profundus nervi ulnaris
Gray's	subject #210 942
Innervates	Dorsal interossei, Palmar interossei, lumbricals #3 and 4
From	palmar branch of ulnar nerve
To
MeSH	[1]

The deep branch of the ulnar nerve, accompanied by the deep branch of the ulnar artery, passes between the abductor digiti minimi and the flexor digiti minimi brevis.

It then perforates the opponens digiti minimi and follows the course of the deep palmar arch beneath the flexor tendons.

At its origin it supplies the hypothenar muscles.

As it crosses the deep part of the hand, it supplies all the interosseous muscles and the third and fourth lumbricals.

It ends by supplying the adductor pollicis and the medial head of the flexor pollicis brevis.

It also sends articular filaments to the wrist-joint.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.