Why Do Cigarette Smokers Cough More Than Most People Do

question 52

Multiple Choice

Why do cigarette smokers cough more than most people do?

• A)The tar in cigarette smoke tends to make alveoli become sticky and close. Coughing opens them.
• B)Coughing is the respiratory system's attempt to clear itself of the thick mucus that is produced in response to smoke exposure.
• C)Cigarette smoking partially paralyzes the lungs; coughing exchanges the resultant "dead air."
• D)Coughing stimulates blood flow to the lungs.