| 词条 | Superior rectus muscle | |||||||||||
| 释义 |
| Name = Superior rectus | Latin = musculus rectus superior bulbi | Image = Eye movements elevators.jpg | Caption = View of the eye from above, showing the action of the superior rectus muscle. | Image2 = | Caption2 = | Origin = annulus of Zinn at the orbital apex | Insertion = 7.5 mm superior to the limbus | Blood = | Nerve = oculomotor nerve | Action = elevates, intorsion, and rotates medially the eye }} The superior rectus muscle is a muscle in the orbit. It is one of the extraocular muscles. It is innervated by the superior division of the oculomotor nerve (Cranial Nerve III). In the primary position (looking straight ahead), the superior rectus muscle's primary function is elevation, although it also contributes to intorsion and adduction. {{Eye orbit anatomy superior|caption=The superior rectus muscles is shown in this image of the right eye from above. Hover the mouse over the structures for their names. Click for more information.}}Structure{{See also|Extraocular muscles}}Function{{See also|Eye movement}}It elevates, adducts, and helps intort (rotate medially) the eye. Clinical significanceTestingThe superior rectus muscle is the only muscle that is capable of elevating the eye when it is in a fully abducted position.[1] Additional images{{Cleanup gallery anatomy|date=May 2015}}References1. ^{{cite web|url=http://cim.ucdavis.edu/Eyes/eyeText.htm |title=Eye Theory |publisher=Cim.ucdavis.edu |date= |accessdate=2012-12-02}} External links
2 : Muscles of the head and neck|Human eye anatomy |
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