ii) Mention the changes in air that takes place in nasal cavity
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As air passes through the nasal cavities it is warmed and humidified, so that air that reaches the lungs is warmed and moist. The Nasal airways are lined with cilia and kept moist by mucous secretions.
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as air passes through the nasal cavities it is warmed and humidfied,so that air that reaches the lungs is warmed and moist...
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