BRAIN
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What muscles do the oculomotor nerves supply?
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Lateral rectus
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Upper right
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Upper obliquely
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Orbicular eye
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Explanation:
Detailed explanation-1: -The oculomotor nerve controls several muscles: Levator palpebrae superioris-raises the upper eyelid. Superior rectus muscle-rotates the eyeball backward, “looking up” Medial rectus muscle-adducts the eye, “looking towards your nose"
Detailed explanation-2: -The 3rd cranial nerves are pure motor nerves. They are Lower Motor Neurons (LMN) (second order neurons). They control eye muscles on the same side of the body (ipsilateral).
Detailed explanation-3: -The visceral motor axons of the oculomotor nerve are part of the autonomic nervous system, specifically the parasympathetic division. They will arise from the Edinger-Westphal nucleus and innervate two separate intrinsic muscles within the eye.
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