Superior rectus muscle Information & Superior rectus muscle Links at HealthHaven.com

Superior rectus
	Rectus muscles:; 2 = superior, 3 = inferior, 4 = medial, 5 = lateral; Oblique muscles: 6 = superior, 8 = inferior; Other muscle: 9 = levator palpebrae superioris; Other structures: 1 = Annulus of Zinn, 7 = Trochlea, 10 = Superior tarsus, 11 = Sclera, 12 = Optic nerve
	Sagittal section of right orbital cavity.
Latin	musculus rectus superior bulbi
Gray's	subject #227 1022
Origin	annulus of Zinn at the orbital apex
Insertion	7.5 mm superior to the limbus
Artery
Nerve	oculomotor nerve
Actions	elevates, intorsion, and rotates medially the eye

The superior rectus muscle is a muscle in the orbit. It is one of the extraocular muscles.

It is innervated by the superior division of the oculomotor nerve (Cranial Nerve III).

In the primary position (looking straight ahead), the superior rectus muscle's primary function is elevation, although it also contributes to intorsion and adduction.

[edit] Additional images

Eye movement of lateral rectus muscle, superior view	Eye movement of medial rectus muscle, superior view	Eye movement of inferior rectus muscle, superior view	Eye movement of superior rectus muscle, superior view
Eye movement of superior oblique muscle, superior view	Eye movement of inferior oblique muscle, superior view	Anterior view