Eustachian tube

Definition (http://en.wikipedia.org/wiki/Eustachian_tube)

Either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum. (WordNet)

Preferred Units: N/A

Scope Note:
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This term is used for the following terms: 
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Approved Date
04-Apr-2013

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