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Question

Endolymph is a fluid present in

A
Eye
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B
Ascaris
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C
Nematocyst
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D
Internal ear
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Solution

The correct option is A Internal ear
Endolymph is the fluid contained in the membranous labyrinth of the inner ear. It is also called Scarpa's fluid. It is rich in cations.
fluid waves in the endolymph of the cochlear duct stimulate the receptor cells, which in turn translate their movement into nerve impulses that the brain perceives as sound. It also helps in maintaining balance.
Disruption of the endolymph due to jerky movements (like spinning around or driving over bumps while riding in a car) can cause motion sickness.
A condition where the volume of the endolymph is greatly enlarged is called endolymphatic hydrops.
So the correct answer is option D.

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