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Definition of Sinus paranasales
1. Noun. Any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities.
Medical Definition of Sinus paranasales
1. Air-filled extensions of the respiratory part of the nasal cavity into the frontal, ethmoid, sphenoid, and maxillary cranial bones. They vary in size and form in different individuals and are lined by the ciliated mucous membranes of the nasal cavity. (12 Dec 1998)
Lexicographical Neighbors of Sinus Paranasales
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