When waves push the basilar membrane up and down, the stereocilia move back and forth, opening up ion channels, allowing this ion to move into the hair cells and depolarizing the membrane. O CH K+ Na* O H* Ca+
The mechanism of hearing starts with acquiring sounds from physical words. The first step is the initiation or the development of the sound wave. Then it follows to the auditory canal and reaches the eardrum where the sound waves vibrate the eardrum and these vibrations further vibrate the three bones presented in the middle ear. The malleus is connected with the eardrum and incus. Then one end of the incus is connected to the third bone, stapes. All three bones vibrate in sequence when sound waves pass through them. Now the sound waves enter into the inner ear where it vibrates the oval window and the fluid present inside it. Then at the final end, the sound waves passed through the cochlear canal to the auditory nerve and from here on, the sound waves are converted into electrical signals and goes to the auditory cortex for interpretation.
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