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corrugator supercilii

   Also found in: Wikipedia 0.01 sec.
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.


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The researchers observed that the patients twitched their smiling-specific zygomaticus major muscle when presented with happy pictures, and the frowning-specific corrugator supercilii muscle when presented with fearful pictures.
Partially blind people can 'unconsciously' sense others' facial ... by Asian News International
The EMG signal is obtained from electrodes on the forehead that detect when the subject contracts the corrugator supercilii muscle by frowning.
Integrated electromyogram and eye-gaze tracking cursor control system ... by Chin, Craig A.; Barreto, Armando; Cremades, J. Gualberto; Adjouadi, Malek / Journal of Rehabilitation Research & Development
The superficial layer of the second-arch mesenchyme differentiates into two more laminae: (3) * infraorbital (zygomaticus major and minor, the levator labii superioris alaeque nasi, the superior part of the orbicularis oris, and possibly the compressor naris, the depressor septi nasi, the orbicularis oculi, the frontalis, the corrugator supercilii, and the procerus) * occipital platysma Between 24 and 26 mm, the zygomaticus major, the depressor anguli oris, and the buccinator appear.
Embryology by Selber, Jesse C. / Ear, Nose and Throat Journal
 
 
 
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