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Writer's pictureHearing Implants Limited

Your hearing explained

How does hearing work?


An ear is made up of 3 parts. That is outer ear (ear canal and the pinna), middle ear (ossicles- stapes, malleus, incus, and eardrum) and inner ear (cochlea-the hearing organ). The cochlea is filled with fluid that contains several (thousands) sensory hair cells attached to a gel-like membrane.


So, how does hearing work?

Sounds are in reality sound waves or vibrations reaching the ears at slightly different times to enable an individual to locate the direction of the sounds.

The pinna funnels sound waves in the ear canal. These sounds waves travel along the canal until they hit the eardrum causing it to vibrate. Consequently, three tiny bones named ossicles (the smallest bones in the body) start moving to pass the vibrations to a thick layer of tissues known as the oval window at the entrance of your inner ear. As a result, oval window sets of wave-like motions in the cochlea fluids. The set motions squash the sensory hairs against the second membrane. This movement is then translated into nerve impulses that are directed into the brain, which in return interoperates the sounds for you to understand them.







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