Role and Function of the Oculomotor Nerve in Eye Movement and Vision

what is the function of CNIII (oculomotor)?

ocular motor (somatic motor)parasympathetic muscle of eye (visceral motor)

The oculomotor nerve (CN III) is responsible for controlling most of the movements of the eye. The primary function of the oculomotor nerve is to innervate the levator palpebrae superioris muscle, which lifts the eyelid. It also controls the pupil’s constriction and the ciliary muscle’s accommodation for near vision. It supplies motor fibers to four of the six extraocular muscles, which are responsible for eye movements. Their names include the superior rectus muscle, inferior rectus muscle, medial rectus muscle, and inferior oblique muscle. The oculomotor nerve is essential for maintaining proper eye position and coordinating eye movements to ensure clear vision. Dysfunction of the oculomotor nerve can cause a range of symptoms, including drooping eyelid, double vision, and difficulty moving the eye in a particular direction.

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