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Dorsal branch of ulnar nerve

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Nerve: Dorsal branch of ulnar nerve
Gray816
Nerves of the left upper extremity. (Dorsal branch labeled at bottom left.)
[[Image:|250px|center|]]
Latin ramus dorsalis nervi ulnaris
Gray's subject #210 942
Innervates
From ulnar nerve
To
MeSH [1]

The dorsal branch of ulnar nerve arises about 5 cm. above the wrist; it passes backward beneath the Flexor carpi ulnaris, perforates the deep fascia, and, running along the ulnar side of the back of the wrist and hand, divides into two dorsal digital branches; one supplies the ulnar side of the little finger; the other, the adjacent sides of the little and ring fingers.

It also sends a twig to join that given by the superficial branch of the radial nerve for the adjoining sides of the middle and ring fingers, and assists in supplying them.

A branch is distributed to the metacarpal region of the hand, communicating with a twig of the superficial branch of the radial nerve.

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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 As such, some of the information contained herein may be outdated.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.


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