Which cranial nerve controls eye movement?
Question
Which cranial nerve controls eye movement?
Solution
The cranial nerves that control eye movement are primarily the Oculomotor nerve (III), the Trochlear nerve (IV), and the Abducens nerve (VI).
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The Oculomotor nerve (III) controls most of the eye's movements and accommodation (adjusting the lens of the eye to properly focus the light on the retina). It also controls the constriction of the pupil.
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The Trochlear nerve (IV) controls the superior oblique muscle. This muscle is responsible for downward, outward, and inward eye movements.
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The Abducens nerve (VI) controls the lateral rectus muscle, which is responsible for outward eye movement.
So, these three cranial nerves work together to control the complex movements of the eyes.
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