Palmar branch of ulnar nerve

Nerve: 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.)
Latin	ramus palmaris nervi ulnaris
Gray's	subject #210 942
From	ulnar nerve
To	superficial branch, deep branch

The palmar branch of the ulnar nerve arises about five cm above 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]

References

1. ^ The Anterior Divisions - Gray's Anatomy of the Human Body - Yahoo! Education
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. 

External links

• Hand kinesiology at UK nerves/ulnar.htm - palmar at left

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 As such, some of the information contained within it may be outdated.