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Superior rectus muscle

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Superior rectus
Eyemuscles
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
Gray888
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
Action: elevates, adducts, and rotates medially the eye
Dorlands/Elsevier m_22/12550523

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.

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