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the cavity behind the nose and above the roof of the mouth that filters air and moves mucous and inhaled contaminants outward and away form the lungs.
membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi
Pseudostratified columnar Epithelium
single layer of cells of differing heights, nuclei look like at different levels. Secretion of mucus and propulsion of mucus by ciliary action
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