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Medical Term:

paranasal sinuses


Definition: the paired air-filled cavities in the bones of the face lined by mucous membrane continuous with that of the nasal cavity; these sinuses are the frontal, sphenoidal, maxillary, and ethmoidal.

Synonym(s): sinus paranasalesTA

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.