<em>Sound from the external environment is collected by the outer ear.</em> It then passes through <em>the auditory canal and reaches the tympanum. </em>
The <em>tympanum then vibrates</em> and these vibrations are then sent to the middle ear which consists of three small bones called malleus, incus and stapes. The sound is amplified by these<em> tiny bones and the amplified sound is sent to the inner ear.
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From the inner ear the sound signals are converted into electrical signals and the auditory nerve sends these signals to the brain. <em>What takes place here is transduction .
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