Which of the following cranial nerves are responsible for extraocular eye movements?

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The cranial nerves responsible for extraocular eye movements include the oculomotor nerve (CN 3), the trochlear nerve (CN 4), and the abducens nerve (CN 6).

The oculomotor nerve controls most of the eye's movements, including those that raise the eyelid and adjust the pupil's size for light. The trochlear nerve specifically innervates the superior oblique muscle, which allows for the movement of the eye inward and down. The abducens nerve controls the lateral rectus muscle, enabling the eye to move laterally.

This combination of nerves allows for complex movements of the eyes, such as convergence, tracking, and maintaining fixation on objects. Understanding the specific functions of these cranial nerves is crucial for evaluating eye movement disorders and conducting appropriate neurological assessments.

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