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Question

Asthma may be attributed to:
  1. Bacterial infection of the lungs
  2. Allergic reaction of the mast cells in the lungs.
  3. Inflammation of the trachea
  4. Accumulation of fluid in the lungs

A
Inflammation of the trachea
B
Allergic reaction of the mast cells in the lungs.
C
Accumulation of fluid in the lungs
D
Bacterial infection of the lungs
Solution
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  • Asthma may be attributed to allergic reaction of the mast cells in the lungs.
  • Asthma symptoms, which include coughing, wheezing, and chest tightness, are common in an asthma attack. Sometimes asthma is called bronchial asthma or reactive airway disease.
  • Mast cells secrete the autacoid mediators histamine, prostaglandin (PG) D2, and leukotriene (LT) C4, which are capable of inducing bronchoconstriction, mucus secretion, and mucosal edema, all features of asthma.
  • So, the correct answer is 'Allergic reaction of the mast cells in the lungs'

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