Deep branch of ulnar nerve

Nerve: Deep branch of ulnar nerve
Superficial palmar nerves. (Deep branch of ulnar labeled at center right.)
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

The deep branch of the ulnar nerve is a terminal, primarily motor branch of the ulnar nerve.^[1]

It is accompanied by the deep palmar branch of ulnar artery.

Path

It 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.

Innervation and termination

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 (deep) head of the flexor pollicis brevis.

It also sends articular filaments to the wrist-joint.

References

1. ^ Ellis, Harold; Susan Standring; Gray, Henry David (2005). Gray's anatomy: the anatomical basis of clinical practice. St. Louis, Mo: Elsevier Churchill Livingstone. pp. 726. ISBN 0-443-07168-3. 

External links

• lesson5nervesofhand at The Anatomy Lesson by Wesley Norman (Georgetown University)

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.