Superior rectus

Superior rectus
View of the eye from above, showing the action of the superior rectus muscle.
Details
Origin	annulus of Zinn at the orbital apex
Insertion	7.5 mm superior to the limbus
Nerve	oculomotor nerve
Actions	elevates, intorsion, and rotates medially the eye
Identifiers
Latin	musculus rectus superior bulbi
Dorlands /Elsevier	m_22/12550523
TA	A15.2.07.010
FMA	49035
Anatomical terms of muscle []

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.

The superior rectus muscle is the only muscle that is capable of elevating the pupil when it is in a fully abducted position.

The right eye in sagittal section, showing the fascia bulbi (semidiagrammatic).

Superior rectus muscle

Superior rectus muscle

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.

Extrinsic eye muscle. Nerves of orbita. Deep dissection.