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When sound waves strike pinna and vibrat...

When sound waves strike pinna and vibration reaches organ of Corti (sensory ridge) on basilar membrane

A

the receptor cells depolarize and open voltagegated ion channels which transduce signal to auditory nerve

B

receptor cells bend accordingly and transmit impulses to the auditory nerve

C

sensory hair undergo bending stimulating the sensory cells and creating the impulse of hearing which is carried to brain by auditory nerve

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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Following is a list of the events (in a random order) that lead to the formation of an auditory impulse. (i)Vibration is transferred from the malleus to the incus to the stapes. (ii)Basilar membrane moves up and down. (iii)Nerve impulse is transmitted in cochlear nerve to auditory cortex of brain for impulse analysis and recognitions. (iv)Sound waves pass through ear canal. (v)Stereocilia of hair cells of organ of Corti rub against tectorical membrane. (vi)Sound waves cause ear drum to vibrate. (vii)Nerve impulse is generated (viii)Vibrations move from fluid of vestibular canal to the fluid of tympanic canal. (ix)Membrane at oval window vibrates. Which of the following options represents these events in a correct order ?

Vibration OF organ pipe||power and intensity OF sound