Hearing Loss : How We Hear
How Hearing Works
How We Hear
The ear has three main parts: outer, middle and inner ear. The outer ear consists of the part of the ear you can see on the side of people’s heads, the ear canal, and the eardrum. The outer ear directs sounds (acoustic energy) through the ear canal to the eardrum. The eardrum, which separates the ear canal from the middle ear, then begins to vibrate.
Within the middle ear are three small bones called ossicles. These ossicles vibrate in response to sound waves which hit the eardrum and in turn transfer sound to the inner ear.
The inner ear contains a snail like structure called a cochlea which translates the incoming sound to electrical impulses which are sent to the auditory (hearing) nerve and ultimately to the brain.
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