Asthma is characterized by
Correct answer: B. Bronchoconstriction and inflammation
- A. Emphysema
- B. Bronchoconstriction and inflammation
- C. Lung cancer
- D. Pneumonia
Explanation
Asthma involves bronchoconstriction, airway inflammation, and excess mucus production, causing wheezing and dyspnea.
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About Effects of Smoking
Smoking exposes the respiratory system to nicotine, tar and carbon monoxide, damaging cilia, reducing oxygen transport and narrowing or inflaming airways. The topic covers dependence, chronic bronchitis, emphysema, lung cancer and cardiovascular effects, while separating short-term physiological changes from long-term disease.
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