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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]
