Deep branch of ulnar nerve

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Deep branch of ulnar nerve
Latin ramus profundus nervi ulnaris
From palmar branch of ulnar nerve
Innervates Dorsal interossei, Palmar interossei, lumbricals #3 and 4 Adductor Pollicis
Gray's p.942
TA A14.2.03.048
FMA 44877
Anatomical terms of neuroanatomy

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.


It passes between the abductor digiti minimi and the flexor digiti minimi brevis.


Innervation and termination[edit]

At its origin it innervates the hypothenar muscles.

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

It ends by innervating the adductor pollicis and the medial (deep) head of the flexor pollicis brevis.

It also sends articular filaments to the wrist-joint.



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

External links[edit]