BRAIN
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one of the following cranial nerves controls the tongue muscles?
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Cranial Nerve XII HYPOGLOSSAL
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Cranial Nerve VII FACIAL
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Cranial Nerve IX GLOSSOPHARYNGEAL
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Cranial Nerve X VAGUS
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Explanation:
Detailed explanation-1: -The hypoglossal nerve enervates the muscles of the tongue.
Detailed explanation-2: -The hypoglossal nerve emerges as several rootlets (labelled here as number 12) from the olives of the medulla (labelled 13), part of the brainstem. The hypoglossal nerve leaves the skull through the hypoglossal canal, which is situated near the large opening for the spinal cord, the foramen magnum.
Detailed explanation-3: -Anatomy and function: Cranial nerve I is a fiber tract emerging from the brain directly, while cranial nerves II through XII arise from the diencephalon and brain stem. With a thorough understanding of normal cranial nerve function and testing, the examiner can localize lesions when abnormalities are found.
There is 1 question to complete.