33 What results from the destruction of cilia in the trachea due to smoking?
A Cilia cannot filter bacteria.
B Cilia cannot trap dust.
C Mucus cannot be manufactured.
D Mucus cannot be carried towards the throat.
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Answer:
D) Mucus cannot be carried towards the throat
Explanation:
Trapping dust and microorganisms like bacteria is the function of nasal hairs and mucus.
Mucus is manufactured glandular epithelium in the respiratory tract (goblet cells).
The function of cilia is to transport mucus out of the respiratory tract.
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