abductor muscle of little finger


A muscle with origin from the pisiform bone and pisohamate ligament, with insertion into the medial side of the base of the proximal phalanx of the little finger, with nerve supply from the ulnar nerve, and whose action abducts and flexes the little finger.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.