NEETZoologyBreathing and Exchange of Gases
What is the main symptom of Asthma?
Options
- AChronic Disorder
- BDifficulty in breathing causing wheezing
- CDecreased respiratory surface
- DProliferation of fibrous tissues
Correct answer
B. Difficulty in breathing causing wheezing
Step-by-step solution
Asthma is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles. Asthma is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles. 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. Occupational Respiratory Disorders: In certain industries, especially those involving grinding or stone-breaking, so much dust is produced that the d