Origin: Superciliary arches
Insertion: Forehead skin, near eyebrow
Nerve: C1 via hypoglossal nerve
Action: Carry hyoid bone and the tongue upward duringdeglutition
The Corrugator (Corrugator supercilii) is a small, narrow, pyramidal muscle, placed at the medial end of the eyebrow, beneath the Frontalis and Orbicularis oculi. It arises from the medial end of the superciliary arch; and its fibers pass upward and lateralward, between the palpebral and orbital portions of the Orbicularis oculi, and are inserted into the deep surface of the skin, above the middle of the orbital arch.