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corrugator supercilii |
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corrugator supercilii [kôr′əgā′tər so̅o̅′pərsil′ē·ī] Etymology: L, corrugare, to wrinkle; super, above, cilium, eyelash one of the three muscles of the eyelid. Arising from the medial end of the superciliary arch and inserting into the skin above the orbital arch, it is innervated by the temporal and zygomatic branches of the facial nerve and functions to draw the eyebrow downward and inward, as if to frown. Also called corrugator. Compare levator palpebrae superioris, orbicularis oculi. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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It involves the involuntary activity of the orbicularis oculi, procerus, and corrugator supercilii muscles. |
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