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How the ear works?

How the ear works?

The hearing process begins when sound waves meet with the outer ear.

As soon as the outer ear receives sound vibrations, it transmits the sound through the external auditory canal to reach the eardrum (the tympanic membrane).

Once the eardrum is hit, these vibrations move further along to the three bones in the middle ear called the ossicles where the vibrations are modulated. From the middle ear, the sound waves are then transmitted to the vestibulocochlear nerve (fluid filled cochlea) to reach the inner ear.

In the inner ear, the sound waves are converted into electrical impulses, which the auditory nerve sends to the temporal lobe of the brain. It is the brain that finally helps us recognize and register these electrical impulses as a sound. We as human beings relate to sounds ranging from frequencies between 20 Hz and 20 kHz.

Besides the primary function of hearing, the ear also has a function to maintain static and dynamic bodily balance, when stationary or moving.

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