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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.
concha. a shell-shaped structure. concha of auricle the hollow of the auricle of the external ear, bounded anteriorly by the tragus and posteriorly by the antihelix. inferior nasal concha a bone forming the lower part of the lateral wall of the nasal cavity.middle nasal concha the lower of two bony plates projecting from the inner wall of the ethmoidal labyrinth and separating the superior from the middle meatus of the nose.ne of the three scroll-like bones that project medially from the lateral wall of the nasal cavity; a turbinate bone. The superior and middle conchae are processes of the lateral mass of the ethmoid bone; the inferior concha is a facial bone. Each overlies a meatus.