BRAIN
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which cranial nerve moves your eyes laterally away from your nose?
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abducens
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facial
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trigeminal
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accessory
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Explanation:
Detailed explanation-1: -Cranial nerves III (CNIII) (oculomotor ), IV (trochlear ), and VI (abducens) control the position of the eyeballs; CNIII influences the position of the eyelids and the size of the pupils.
Detailed explanation-2: -The function of the abducens nerve is quite simple and straightforward: It moves the eye outward (abduction) so you can look to the side. Via the contralateral medial rectus muscle, it coordinates the simultaneous side-to-side movement of your eyes.
Detailed explanation-3: -The abducens nerve functions to innervate the ipsilateral lateral rectus muscle and partially innervate the contralateral medial rectus muscle (at the level of the nucleus-via the medial longitudinal fasciculus).
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