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Inner and outer ear anatomy

Sounds are actually waves from vibrations. The outer ear catches these waves and funnels them down into the inner ear. The waves reach the eardrum and in turn make the eardrum vibrate. Three small bones receive these vibrations next, then a snail shell-shaped structure called the cochlea. The cochlea is filled with liquid, and this liquid stimulates hairs inside the inner ear. The hairs transmit the signal to the auditory nerve where the signal is taken to the brain and processed as sound.

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Resource Type: Illustration
Audience Level: Intermediate elementary 3-5, Middle school 6-8

Author and Copyright

Authors and Editors: Zina Deretsky of National Science Foundation
Publisher: National Science Foundation
Format: text/html
Copyright and other restrictions: Yes
Cost: No


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