What is the major cause of Emphysema?

What is the major cause of Emphysema?
  1. Inflammation
  2. Difficulty in breathing causing wheezing
  3. Decreased respiratory surface
  4. Cigarette smoking

Solution

Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. One of the major causes of this is cigarette smoking.

Asked in: NCERT

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