superior oblique muscle of head

n.
  1. A muscle with origin from the transverse process of the atlas, with insertion into the lateral third of the inferior nuchal line, 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.