elevator muscle of upper eyelid

n.

A muscle with origin from the sphenoid bone, with insertion into the eyelid, tarsal plate, and walls of the eye socket, with nerve supply from the oculomotor nerve, and whose action raises the upper eyelid.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.