corrugator supercilii muscle corrugator supercilii muscle the corrugator supercilii muscle is a small, narrow, pyramidal muscle close to the eye. it arises from the medial end of the superciliary arch, and inserts into the deep surface of the skin of the eyebrow. it draws the eyebrow downward and medially, producing the vertical wrinkles of the forehead. corrugator supercilii muscleleft orbicularis oculi muscle (notice the corrugator muscle at the top)corrugator superciliidetailsoriginsupraorbital ridge ( superciliary arches )insertionforehead skin, near eyebrowarteryophthalmic arterynervefacial nerveactionswrinkles foreheadidentifierslatinmusculus corrugator superciliita98a04.1.03.018ta22071fma46794anatomical terms of muscle structure the corrugator supercilii muscle is located at the medial end of the eyebrow, beneath the frontalis muscle and just above the orbicularis oculi muscle. it arises from the medial end of the superciliary arch. its fibers pass upward and laterally, between the palpebral and orbital portions of the orbicularis oculi muscle. it inserts into the deep surface of the skin of the eyebrow, above the middle of the orbital arch. relations the supratrochlear nerve passes by the corrugator supercilii muscle between it and the frontalis muscle. function the corrugator supercilii muscle draws the eyebrow downward and medially, producing the vertical wrinkles of the forehead. it is the "frowning" muscle, and may be regarded as the principal muscle in the expression of suffering. it also contracts to prevent high sun glare, pulling the eyebrows toward the bridge of the nose, making a roof over the area above the middle corner of the eye and typical forehead furrows. clinical significance the muscle is sometimes surgically severed or paralysed with botulinum toxin as a preventive treatment for some types of migraine or for aesthetic reasons. etymology the name corrugator supercilii comes from latin, and means wrinkler of the eyebrows. additional images corrugator supercilii seen from the inside. position of corrugator supercilii muscle (red) outer surface of frontal bone. visible on upper portion of face.