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Oculomotor nerve [III]

Other Terms: Third cranial nerve, Oculomotor nerve tree, Oculomotor nerve [III], Nervus oculomotorius, Nerve III, Nervus oculomotorius [III]

Description

The third cranial or oculomotor nerve arises superficially from a groove on the inner side of the crus cerebri, just anterior to the pons and deeply from the nucleus in the floor of the cerebral aqueduct. It is a motor nerve and supplies all the muscles of the eyeball except the superior oblique, the external rectus, and the radiating fibers of the iris.

Type

Motor

Function

Moves eyeball in all directions

Travels through

Superior orbital fissure

Innervation

The orbit including: Superior rectus, Medal rectus, Inferior rectus, Levator palpebrae superioris, and the Inferior oblique. It also supplies the sphincter pupllae muscle of the iris and the ciliary body muscles.

Latin

Nervus oculomotorius

Latin

Nerve III

Latin

Nervus oculomotorius [III]

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