Corrugator supercilii muscle
From Wikipedia, the free encyclopedia
| Corrugator supercilii muscle | ||
|---|---|---|
 |
||
| Left obicularis oculi; notice the corrugator muscle at the top | ||
| Latin | musculus corrugator supercilii. | |
| Gray's | subject #106 381 | |
| Origin: | ||
| Insertion: | ||
| Blood: | ||
| Nerve: | facial nerve | |
| Action: | ||
| Dorlands/Elsevier | m_22/12548671 | |
The Corrugator supercilii is a small, narrow, pyramidal muscle, placed at the medial end of the eyebrow, beneath the Frontalis and Orbicularis oculi.
It arises from the medial end of the superciliary arch; and its fibers pass upward and lateralward, between the palpebral and orbital portions of the Orbicularis oculi, and are inserted into the deep surface of the skin, above the middle of the orbital arch.
[edit] Action
The Corrugator draws the eyebrow downward and medialward, 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.
[edit] External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
 |
This muscle article is a stub. You can help Wikipedia by expanding it. |
