Reference Terms
from Wikipedia, the free encyclopedia

Eardrum

The tympanic membrane, colloquially known as the eardrum, is a thin membrane that separates the external ear from the middle ear.

Its function is to transmit sound from the air to the ossicles inside the middle ear.

Note:   The above text is excerpted from the Wikipedia article "Eardrum", which has been released under the GNU Free Documentation License.
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September 1, 2015

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updated 12:56 pm ET