https://www.wikidoc.org/index.php?title=Medial_rectus_muscle&feed=atom&action=historyMedial rectus muscle - Revision history2024-03-28T20:41:15ZRevision history for this page on the wikiMediaWiki 1.40.0https://www.wikidoc.org/index.php?title=Medial_rectus_muscle&diff=679255&oldid=prevWikiBot: Robot: Automated text replacement (-{{SIB}} + & -{{EH}} + & -{{EJ}} + & -{{Editor Help}} + & -{{Editor Join}} +)2012-08-09T17:15:09Z<p>Robot: Automated text replacement (-{{SIB}} + & -{{EH}} + & -{{EJ}} + & -{{Editor Help}} + & -{{Editor Join}} +)</p>
<p><b>New page</b></p><div>{{Muscle infobox |<br />
Name = Medial rectus |<br />
Latin = musculus rectus medialis bulbi |<br />
GraySubject = 227 |<br />
GrayPage = 1022 |<br />
Image = Eyemuscles.png |<br />
Caption = ''Rectus muscles:'' <BR>2 = [[Superior rectus muscle|superior]], 3 = [[Inferior rectus muscle|inferior]], 4 = [[Medial rectus muscle|medial]], 5 = [[Lateral rectus muscle|lateral]]<br>''Oblique muscles:'' 6 = [[Superior oblique muscle|superior]], 8 = [[Inferior oblique muscle|inferior]]<br>''Other muscle:'' 9 = [[levator palpebrae superioris muscle|levator palpebrae superioris]]<br>''Other structures:'' 1 = [[Annulus of Zinn]], 7 = [[Trochlea of superior oblique|Trochlea]], 10 = [[Tarsi|Superior tarsus]], 11 = [[Sclera]], 12 = [[Optic nerve]] |<br />
Image2 = Gray785.png |<br />
Caption2 = Figure showing the mode of innervation of the Recti medialis and lateralis of the eye. |<br />
Origin = [[annulus of Zinn]] at the orbital apex |<br />
Insertion = 5.5 mm medial to the [[limbus]] |<br />
Blood = |<br />
Nerve = inferior division of the [[oculomotor nerve]] |<br />
Action = [[adducts]] the eyeball (makes it move inwards) |<br />
DorlandsPre = m_22 |<br />
DorlandsSuf = 12550510 |<br />
}}<br />
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The '''medial rectus muscle''' is a [[muscle]] in the [[orbit (anatomy)|orbit]].<br />
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As with most of the muscles of the orbit, it is [[innervation|innervated]] by the inferior division of the [[oculomotor nerve]] (Cranial Nerve III).<br />
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This muscle shares an origin with several other extrinsic eye muscles, the [[anulus tendineus]], or common tendon.<br />
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It is the largest of the extraocular muscles and its only action is adduction of the eyeball.<br />
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==Additional images==<br />
<gallery><br />
Image:Gray869.png|Horizontal section of the eyeball.<br />
Image:Gray890.png|Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.<br />
Image:ThreeNeuronArc.png |[[Vestibulo-ocular reflex]]<br />
</gallery><br />
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==External links==<br />
* {{MuscleLoyola|mr}}<br />
* {{GPnotebook|-1476001712}}<br />
* {{SUNYAnatomyFigs|29|01|06}}<br />
* {{eMedicineDictionary|medial+rectus+muscle}}<br />
* {{NormanAnatomy|lesson3}} ({{NormanAnatomyFig|orbit4}})<br />
* [http://static.howstuffworks.com/gif/vision3.gif Diagram at howstuffworks.com]<br />
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{{Muscles of head}}<br />
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[[Category:Muscles of the head and neck]]<br />
[[Category:Eye]]<br />
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[[hu:Musculus rectus medialis]]<br />
[[nl:Musculus rectus medialis]]<br />
[[ja:内側直筋]]<br />
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{{WH}}<br />
{{WikiDoc Sources}}</div>WikiBot