Definition: the cavity on either side of the nasal septum, lined with ciliated respiratory mucosa, extending from the naris anteriorly to the choana posteriorly, and communicating with the paranasal sinuses through their orifices in the lateral wall, from which also project the three conchae; the cribriform plate, through which the olfactory nerves are transmitted, forms the roof; the floor is formed by the hard palate.
Synonym(s): cavitas nasiTA, cavum nasi
See Also: bony nasal cavity
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