Superior rectus muscle

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The superior rectus muscle is a muscle of the eye that turns the eye upward when contracted, causing the person to look up.


Levator palpebrae superioris muscle Superior oblique muscle Superior rectus muscle Lateral rectus muscle Lateral rectus muscle Medial rectus muscle Inferior rectus muscle Inferior oblique muscle Sclera Iris Annulus of Zinn'The muscles of the eye.'

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The superior rectus muscle

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Action

The superior rectus elevates the eye, causing the person to look upward. When adducted, it medially rotates the eye.

Origin

The superior rectus muscle originates from the back of the eye socket, at the top of the annulus of Zinn.

Insertion

The superior rectus inserts on the top of the eye, at the superior sclera on the anterior side of the equator of the eye.

Innervation

The superior rectus is innervated by the superior division of the oculomotor nerve (CN III).

See also

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