Anatomy

Origin

The superior rectus originates from the upper part of the common tendinous ring (anulus of Zinn), above and lateral to the optic canal. Some fibres of the superior rectus also arise from the dural sheath of the optic nerve.

Insertion

The superior rectus inserts into the upper part of the sclera, approximately 8,5 mm from the corneal limbus, forming an arch of approximately 6,5 mm.

Nerve

Oculomotor nerve (III cranial nerve)

Actions

Contraction of the superior rectus result in moving the visual gaze up and in (raises, intra-rotates and adducts the ocular globe).