passavant's cushion

Medical Dictionary

Passavant's cushion Pas·sa·vant's cushion (pās'ə-vānts')
A prominence on the posterior wall of the nasal pharynx formed by contraction of the superior constrictor of the pharynx during swallowing.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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