NEET2016ZoologyBreathing and Exchange of GasesActual
Asthma may be attributed to:
Options
- ABacterial infection of the lungs
- BAllergic reaction of the mast cells in the lungs
- CFungal infection of the lungs
- DAccumulation of fluid in the lung
Correct answer
B. Allergic reaction of the mast cells in the lungs
Step-by-step solution
Asthma is an allergic reaction characterized by spasm of bronchi muscles because of the effect of histamine released by mast cells. Occupational asthma is usually caused by inhaling fumes, gases, dust, or other potentially harmful substances during work or job. Asthma during childhood has impacted millions of children and their families. The majority of children who develop asthma do so before the age of five.