<Tr> <Th> Latin </Th> <Td> tunica mucosa nasi, membrana mucosa nasi </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> The nasal mucous membrane lines the nasal cavities, and is intimately adherent to the periosteum or perichondrium of the nasal conchae . It is continuous with the skin through the nares, and with the mucous membrane of the nasal part of the pharynx through the choanae . From the nasal cavity its continuity with the conjunctiva may be traced, through the nasolacrimal and lacrimal ducts; and with the frontal, ethmoidal, sphenoidal, and maxillary sinuses, through the several openings in the meatuses . The mucous membrane is thickest, and most vascular, over the nasal conchae . It is also thick over the septum; but it is very thin in the meatuses on the floor of the nasal cavities, and in the various sinuses . It is one of the most commonly infected tissues in adults and children . Inflammation of this tissue may cause significant impairment of daily activities, with symptoms such as stuffy nose, headache, mouth breathing, etc . </P> <P> Owing to the thickness of the greater part of this membrane, the nasal cavities are much narrower, and the middle and inferior nasal conchæ appear larger and more prominent than in the skeleton; also the various apertures communicating with the meatuses are considerably narrowed . </P>

The olfactory epithelium lies in a mucous membrane covering the inferior nasal conchae