levator palpebrae superioris (muscle)
Definition: extraocular muscle in orbit; origin, orbital surface of the lesser wing of the sphenoid, above and anterior to the optic canal; insertion, skin of eyelid, tarsal plate, and orbital walls, by medial and lateral expansions of the aponeurosis of insertion; action, raises the upper eyelid; nerve supply, oculomotor.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.