inferior oblique muscle of head

n.
  1. A muscle with origin in the spinous process of the axis, with insertion into the transverse process of the atlas, with nerve supply from the suboccipital nerve, and whose action rotates the head.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.