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the conchae and nasal mucosa function during inhalation to filter, heat, and moisten the air. during exhalation, they reclaim this heat and moisture. the inhaled air cools the conchae, and then during exhalation these cooled conchae precipitate moisture and extract heat from the humid air flowing over them.
The nasal and oral cavities are connected with each other through the nasopharynx at the back of the throat. The soft palate and the uvula (a fleshy protrusion at the back of the throat) together move up to close off this connection during eating to prevent food from entering the nasal cavity [12]. Nasal Cavity Bones: The Three Nasal Conchae