Multiple Choice
People suffering from bronchitis cough excessively because
A) excess bronchial mucus is produced.
B) not enough bronchial mucus is produced.
C) cilia that line the bronchial tubes are non-functional.
D) cilia that line the bronchial tubes are hyperactive.
E) of more than one of these.
Correct Answer:
Verified
Correct Answer:
Verified
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