NEET 2016 Biology question

Asthma may be attributed to:

(1)Bacterial infection of the lungs
(2)Allergic reaction of the mast cells in the lungsCorrect
(3)Inflammation of the trachea
(4)Accumulation of fluid in the lung

Answer: (2)

Solution

Asthma is an allergic reaction in which allergens trigger mast cells in the lungs to release histamine and other mediators, causing inflammation and spasm of the bronchi and bronchioles, with wheezing and difficulty in breathing.

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Question ID VK-091946