<Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> The nasal cavity (nasal fossa, or nasal passage) is a large air filled space above and behind the nose in the middle of the face . Each cavity is the continuation of one of the two nostrils . </P> <P> The term "nasal cavity" can refer to each of the two sides of the nose or to the two sides combined . The two nasal cavities condition the air to be received by the other areas of the respiratory tract . Owing to the large surface area provided by the nasal conchae (also known as turbinates), the air passing through the nasal cavity is warmed or cooled to within 1 degree of body temperature . In addition, the air is humidified, and dust and other particulate matter is removed by vibrissae, short, thick hairs, present in the vestibule . The entire mucosa of the nasal fossae is covered by a blanket of mucus, which lies superficial to the microscopic cilia and also filters inspired air . The cilia of the respiratory epithelium move the secreted mucus and particulate matter posteriorly towards the pharynx where it passes into the esophagus and is digested in the stomach . The nasal cavity also houses the sense of smell and contributes greatly to taste sensation through its posterior communication with the mouth via the choanae . </P> <P> The lateral wall of each nasal cavity mainly consists of the maxilla . However, there is a deficiency that is compensated by the perpendicular plate of the palatine bone, the medial pterygoid plate, the labyrinth of ethmoid and the inferior concha . The paranasal sinuses are connected to the nasal cavity through small orifices called ostia . Most of these ostia communicate with the nose through the lateral nasal wall, via a semi-lunar depression in it known as the infundibulum . The infundibulum is bound laterally by a projection known as the uncinate process . </P>

What is the function of cilia in the nose
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