inferior gemellus muscle

[jə-mĕləs]
n.
  1. A muscle with its origin from the tuberosity of the ischium, with insertion to the tendon of the internal obturator muscle, with nerve supply from the sacral plexus, and whose action rotates the thigh laterally.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.