a doctor told a patient that the air he breathe lacks enough moisture thus irritating the lining of airways which of the following is the dirst structure that helps us to moisten the air we breathe
A.cilia
B.alveoli
C.diaphragm
D.nostrils
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a doctor told a patient that the air he breathe lacks enough moisture thus irritating the lining of airways which of the following is the dirst structure that helps us to moisten the air we breathe
A.cilia
B.alveoli
C.diaphragm
D.nostrils
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Answer:
D. Nostrils
The nose and nasal cavity filter, warm, and moisten the inhaled air. The nose hairs and mucus produced by the epithelial cells in the nose catch airborne particles and prevent them from reaching the lungs.