Question

Incidence of emphysema, a respiratory disorder is high in cigarette smokers. In emphysema,

• A. the bronchioles are found to be damaged
• B. the alveolar walls are found to be damaged
• C. the bronchi are found to be damaged
• D. the respiratory muscles are found to be damaged

Answer 1

The correct option is B the alveolar walls are found to be damaged

Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. It is a respiratory disorder caused majorly by cigarette smoking. Also, inhalation of other smoke or toxic substances over a period of time can cause this disorder.