Huizhou Jinghao Medical Technology CO., Ltd.

How Does A Hearing Aid Work

You're hearing is a complex system of delicate and interconnected parts that are easy to take for granted to help you better understand why hearing loss happens. You should first know how your hearing works.

The sound is actually a vibration when something vibrates like a bell wind or a voice. It moves the air around it. The air carries the energy of those vibrations as a sound wave that's where your ear comes into play the shape of your outer ear is as unique as your fingerprints but plays an important role in how you hear called the pinna. It's funnel-like shape and curves enable you to determine where a sound is coming from. So you immediately know if the source is in front behind, above or below you. Sound waves are collected by the outer ear and directed along the ear canal to the eardrum when the sound wave hit the eardrum they cause the three bones of the middle ear to move the smallest of these bones the stirrup fits into the oval window between the middle and inner ear when the oval window moves fluid in the inner ear moves carrying the energy through a delicate snail-shaped structure called the cochlea.

In the inner ear, thousands of microscopic hair cells are bent by the movement of the fluid inside the cochlea when these hairs bend it sets off nerve impulses which are passed by the auditory nerve to the hearing center of the brain. Sound like words music or laughter are translated from these impulses by the brain. If any part of this delicate and complicated system of bones hairs and fluid breaks down.

Hearing loss frequently results as you can see the ear is an amazingly intricate body part that many take for granted until something goes wrong.


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