Inferior rectus muscle
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The inferior rectus muscle is a muscle in the orbit.
Structure
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Innervation
As with most of the muscles of the orbit, it is innervated by the oculomotor nerve (Cranial Nerve III).
Function
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It depresses, adducts, and helps extort (rotate laterally) the eye.
The inferior rectus muscle is the only muscle that is capable of depressing the pupil when it is in a fully abducted position.[1]
Additional images
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Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.
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The right eye in sagittal section, showing the fascia bulbi (semidiagrammatic).
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Inferior rectus muscle
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Inferior rectus muscle
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
References
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<references />, or <references group="..." />External links
- Anatomy figure: 29:01-07 at Human Anatomy Online, SUNY Downstate Medical Center
- lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbit5)
- Diagram at mun.ca
de:Augenmuskeln#Musculus rectus inferior
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
