Corrugator supercilii muscle

Changed by Daniel MacManus, 14 Dec 2018

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Corrugator supercilii

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The ~~corrugator supercilii~~Corrugator Supercilii muscles are two small, triangular muscles that allow facial expression through movement of the eyebrows, including frowning. They ~~originate from the medial end of the~~ ~~supraorbital margins~~ ~~and insert~~are found lying deep to ~~and can cause traction on~~ the ~~skin over the middle~~frontal part of occipitofrontalis and orbicularis oculi, with which they are blended¹².

Summary

origin: The medial end of the supraorbital margins.
insertion: Deep to the skin above the middle of the supraorbital margins¹.

Blood supply

Arterial supply is by branches from nearby arteries, principally the superficial temporal and ophthalmic arteries.

Innervation

Innervation is derived from temporal branches of the facial nerve

Action

Combines its actions with orbicularis oculi to pull the eyebrows medially and downwards in bright environments to shield the eyes (e.g. in sunlight)
Frowning
Responsible for producing vertical wrinkles on the supranasal strip of the forehead

Related Radiopaedia articles

Superficial temporal artery

S upraorbital margins

-<p>The corrugator supercilii are two small, triangular muscles that allow facial expression through movement of the eyebrows, including frowning. They originate from the medial end of the <a href="/articles/supraorbital-ridge">supraorbital margins</a> and insert deep to and can cause traction on the skin over the middle of the <a href="/articles/supraorbital-ridge">supraorbital margins</a> <sup>1</sup>.</p>
+<p>The <strong>Corrugator Supercilii</strong> muscles are two small, triangular muscles that allow facial expression through movement of the eyebrows, including frowning. They are found lying deep to the frontal part of <a href="/articles/scalp-1">occipitofrontalis</a> and <a href="/articles/orbicularis-oculi">orbicularis oculi</a>, with which they are blended<sup>2</sup>.</p><h4>Summary</h4><ul>
+<li>
+<strong>origin</strong>: The medial end of the <a href="/articles/supraorbital-ridge">supraorbital margins</a>.</li>
+<li>
+<strong>insertion:</strong> Deep to the skin above the middle of the <a href="/articles/supraorbital-ridge">supraorbital margins</a> <sup>1</sup>.</li>
+</ul><h4>Blood supply</h4><ul><li>Arterial supply is by branches from nearby arteries, principally the <a href="/articles/superficial-temporal-artery">superficial temporal</a> and <a href="/articles/ophthalmic-artery">ophthalmic arteries</a>.</li></ul><h4>Innervation</h4><ul><li>Innervation is derived from temporal branches of the <a href="/articles/facial-nerve">facial nerve</a>
+</li></ul><h4>Action</h4><ul>
+<li>Combines its actions with <a href="/articles/orbicularis-oculi">orbicularis oculi </a>to pull the eyebrows medially and downwards in bright environments to shield the eyes (e.g. in sunlight)</li>
+<li>Frowning</li>
+<li>Responsible for producing vertical wrinkles on the supranasal strip of the forehead</li>
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+<![endif]--></p><ul>
+<li><a href="/articles/facial-muscles">Facial muscles</a></li>
+<li><a href="/articles/facial-nerve">Facial nerve</a></li>
+<li><a href="/articles/orbicularis-oculi">Orbicularis Oculi</a></li>
+<li>
+<a href="/articles/scalp-1">Occipitofrontalis</a> </li>
+<li><a href="/articles/ophthalmic-artery">Ophthalmic artery</a></li>
+<li><a href="/articles/superficial-temporal-artery">Superficial temporal artery</a></li>
+<li>
+<a href="/articles/supraorbital-ridge">S</a><a href="/articles/supraorbital-ridge">upraorbital margins</a>
+</li>
+</ul><p></p>

References changed:

1. Susan Standring. Gray's Anatomy. (2008): p486. <a href="https://books.google.com/books/about/Gray_s_Anatomy.html?id=kvhkPQAACAAJ">ISBN: 9780443066849</a><span class="ref_v4"></span>
1. Susan Standring. Gray's Anatomy. (2008): p486. <a href="https://books.google.com/books/about/Gray_s_Anatomy.html?id=kvhkPQAACAAJ">ISBN: 9780443066849</a><span class="ref_v4"></span>
2. Susan Standring. Gray's Anatomy E-Book. (2015): p494, <a href="https://books.google.co.uk/books?vid=ISBN9780702068515">ISBN: 9780702068515</a><span class="ref_v4"></span>.
1. Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice - 40th edition. Publication city not listed: Elsevier limited; 2008. Pg 486.
1. Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice - 40th edition. Publication city not listed: Elsevier limited; 2008. Pg 486. 2. Gray's Anatomy, 41st Edition The Anatomical Basis of Clinical Practice Author : By Susan Standring, PhD, DSc ISBN : 9780702052309. Pg 494