Inferior oblique muscle

The inferior oblique muscle is a muscle of the eye that rotates the eye upward when it is turned inward. The inferior oblique has a complex action that changes depending on the position of the eye.

Origin
The inferior oblique muscle originates from the back of the eye socket, at the maxilla just below the annulus of Zinn.

Insertion
The inferior oblique inserts on the bottom of the eye, at the posterior inferior quadrant of the sclera on the posterior side of the equator of the eye.

Innervation
The inferior oblique is innervated by the oculomotor nerve (CN III).