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AUDIOLOGIST/RIE ROSSOUW/CENTURION GAUTENG
Normal Hearing
How Normal Hearing Works
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Sound waves move through the ear canal and strike the eardrum
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These sound waves cause the eardrum and the three bones/ossicles within the middle ear to vibrate
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The vibrations move through the fluid in the spiral shaped inner ear – known as the cochlea – and cause the tiny hear cells in the cochlea to move. The hear cells detect the movement and change it into the chemical signals for the hearing nerve
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The hearing nerve then sends the information to the brain with electrical impulses, where they are interpreted as sound
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