Corrugator supercilii

  • The corrugator supercilii (also corrugator supercilii muscle, latin: musculus corrugator supercilii) is a small, narrow facial muscle located at the medial end of the eyebrow. It lies between the frontalis and orbicularis oculi muscles.

    Origin

    The corrugator supercilii originates from the medial part of the superciliary arch.

    Insertion

    The corrugator supercilii penetrates the frontalis and orbicularis oculi muscles and inserts into the skin over the middle of the eyebrow.

    Action

    Upon contraction the corrugator supercilii pulls the skin of the eyebrow downward and medially and produces vertical wrinkles of the forehead.

    Innervation

    The corrugator supercilii muscle is innervated by the temporal branch of facial nerve (CN VII).

    Blood supply

    The corrugator supercilii receives blood supply mainly from branches of the superficial temporal and ophthalmic arteries.