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Teaching Assignment II

Teaching Assignment II - In order to understand the sense...

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In order to understand the sense of hearing, or audition, you must discuss some characteristics of sound. The rhythmic vibration of air molecules produce sound waves. The intensity or amplitude of sound waves are measured in decibels. Zero decibels represent the loudness of the softest sound a human can hear. The human ear is made up of several parts. The ear is made up of the outer ear, the middle ear, and the inner ear. Sound waves are collected in the outer ear, amplified in the middle ear, and transduced in the inner ear. Transduction is the process where sound waves are transformed into neural messages. The outer ear consists of the pinna, the ear canal, and the eardrum. The pinnas primary action is to catch sound waves and funnel them into the ear canal, but it also helps us pinpoint location of sound. Once the sound wave travels through the ear canal it hits the eardrum, which is a tightly stretched membrane, it vibrates. The eardrum is what separates the outer ear from the middle ear.
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