Medial rectus muscle

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The medial rectus muscle (rectus medialis) is a muscle of the eye that contracts to turn the eye inward, toward the center of the body.

Contents

Origin

The medial rectus originates from the back of the eye socket, at the medial side of the annulus of Zinn.

Insertion

The medial rectus inserts at the side of the eye, on the medial sclera just passed the equator of the eye.

Innervation

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

See also

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