Action
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 in order 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.
The muscle is sometimes surgically severed or paralysed with botulinum toxin as a preventive treatment for some types of migraine or for aesthetic reasons.
Read more about this topic: Corrugator Supercilii Muscle
Famous quotes containing the word action:
“You mustn’t look in my novel for the old stable ego of the character. There is another ego, according to whose action the individual is unrecognisable.”
—D.H. (David Herbert)
“If, from the very first, the action of the play is absurd, it is because this is the way mad Waltz—before the play starts—imagines it is going to be....”
—Vladimir Nabokov (1899–1977)
“Each action of the actor on the stage should be the visible concomitant of his thoughts.”
—Sarah Bernhardt (1845–1923)