Superior rectus muscle

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

Action
The superior rectus elevates the eye, causing the person to look upward. When adducted, it Medial|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).