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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.
Internal nasal anatomy. In the midline of the nose, the septum is a composite (osseo-cartilaginous) structure that divides the nose into two (2) similar halves. The lateral nasal wall and the paranasal sinuses, the superior concha, the middle concha, and the inferior concha, form the corresponding passages, the superior meatus, the middle meatus, and the inferior meatus, on the lateral nasal wall.