Palmar branch of ulnar nerve

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Palmar branch of ulnar nerve
Superficial palmar nerves. (Deep branch of ulnar and superficial branch of ulnar labeled at center right.)
Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. (Ulnar palmar labeled at bottom left, in blue.)
From ulnar nerve
To superficial branch, deep branch
Latin ramus palmaris nervi ulnaris
TA A14.2.03.044
FMA 44878
Anatomical terms of neuroanatomy

The palmar branch of the ulnar nerve arises about five cm proximal to the wrist from where the ulnar nerve splits into palmar and dorsal branches.

The palmar branch represents the continuation of the ulnar nerve as it crosses the flexor retinaculum of the hand on the lateral side of the pisiform bone, medial to and a little behind the ulnar artery.

Some sources state that it ends by dividing into a superficial and a deep branch.[1] (Other sources state that the superficial branch of ulnar nerve and deep branch of ulnar nerve are the terminal branches of the ulnar nerve itself.)[2]

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This article incorporates text in the public domain from page 942 of the 20th edition of Gray's Anatomy (1918)

  1. ^ The Anterior Divisions - Gray's Anatomy of the Human Body - Yahoo! Education Archived 2008-06-23 at the Wayback Machine.
  2. ^ 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. 

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