Corrugator supercilii muscle
|Corrugator supercilii muscle|
Left orbicularis oculi muscle (notice the corrugator muscle at the top)
|Latin||Musculus corrugator supercilii|
|Insertion||Forehead skin, near eyebrow|
|Anatomical terms of muscle|
It arises from the medial end of the superciliary arch; and its fibers pass upward and laterally, between the palpebral and orbital portions of the orbicularis oculi muscle, and are inserted into the deep surface of the skin, above the middle of the orbital arch.
The name corrugator supercilii is Latin, meaning wrinkler of the eyebrows.
The corrugator 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.
Outer surface of frontal bone.
- "eye, human."Encyclopædia Britannica from Encyclopædia Britannica 2006 Ultimate Reference Suite DVD 2009
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