MEDICAL
NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The most important cranial nerve is
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Hypoglossal
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Accessory
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Vagus
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Auditory
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Explanation:
Detailed explanation-1: -The vagus nerve (cranial nerve [CN] X) is the longest cranial nerve in the body, containing both motor and sensory functions in both the afferent and efferent regards.
Detailed explanation-2: -The most important function of the vagus nerve is afferent, bringing information of the inner organs, such as gut, liver, heart, and lungs to the brain. This suggests that the inner organs are major sources of sensory information to the brain.
Detailed explanation-3: -The vagus nerve enervates the gut (gastrointestinal tract), heart and larynx. The accessory nerve enervates the sternocleidomastoid muscles and the trapezius muscles. The hypoglossal nerve enervates the muscles of the tongue.
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