corrugator muscle


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cor·ru·ga·tor su·per·ci·li·i (mus·cle)

[TA]
facial muscle of forehead; origin, from orbital portion of musculus orbicularis oculi and nasal prominence; insertion, skin of eyebrow; action, draws medial end of eyebrow downward and wrinkles forehead vertically, conveying facial expression of deep thought, worry, or concern; nerve supply, facial.

corrugator muscle

Facial muscle. Origin: medial part of supraorbital margin. Insertion: skin above middle of eyebrow. Nerve: facial (CN VII). Action: pulls eyebrows toward midline and downward.
Synonym: Corrugator supercilii
See also: muscle
References in periodicals archive ?
Specifically, Lee and Lang (2009) reported that a fear appeal elicited higher skin conductance responses, activation of the corrugator muscles, and startle responses.
It is possible that a controlled processing mode was engaged to some degree by virtue of aesthetic instructions and corrugator muscle feedback, with the increase in cognitive effort and top-down control affecting preference judgments for the photographs.
The use of the electromyography instrument connected to the delivery needle appears to be an effective means of assuring that BTX is delivered accurately into the body of the corrugator muscles.