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Question

Which of the following nerve helps in maintaining the equilibrium of body?

A
Trochlear
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B
Abducens
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C
Auditory
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D
Facial
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Solution

The correct option is C Auditory
Depending on the plane of movement, the endolymph flowing within the semicircular canals stimulates the appropriate movement hair cells.
The static head position is sensed by the vestibule, specifically, its utricle and saccule, which contain the hair cells.
Different head positions produce different gravity effects on these hair cells. The hair cells for both position and movement create nerve impulses. These impulses travel over the vestibulocochlear nerve (auditory nerve) to synapse in the brain stem, cerebellum, and spinal cord.

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