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The basilar membrane of cochlea...

The basilar membrane of cochlea

A

Is unaffected by movement of fluid in the scala vestibule

B

Covers the oval window and round window

C

Vibrate in a pattern determined by the form of travelling wave in the fluids of cochlea

D

Vibrates when the body is subjected to linear accelrations.

Text Solution

Verified by Experts

The correct Answer is:
C
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Assertion : Hair cells on the basilar membrane (organ of Corti) are responsible for hearing. Reason : Pressure waves, which begin at the oval windows, cause the basilar membrane to vibrate so that the cilia of the hair cells touch the tectorial membrane. This causes the hair cells to initiate nerve impulses, which are carried by the auditory nerve to the brain.

Given below are some of the process which takes place in our ear when we are exposed to any sound. Arrange these in the correct order of sequence. (a)The eardrum vibrates the transmits the sound wave to the ear ossicles. (b) Vibration travel from oval window to the fluid of cochlea. (c) Ripples in the basilar membrane band the hair cell against the tectorial membrane (d) Generation of waves in the lymphs. (e ) sound waves are collected by the pinna. (f) generation of nerve impulse and transmission through auditory nerves to the brain

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Assertion :- If we remove hair cell, then hearing is not possible. Reason:- Movement of basilar membrane bend the hair cell against tectorial membrane to generate nerve impulse.