Topic: Breathing and respiration: mechanism, exchange and transport of gases, volumes, disorders· Human Physiology

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

Doubtly Asked 30 Oct 2026 NEET UG 2016 Phase 1 Practice test neet Save WhatsApp Report

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Answer: 2. allergic reaction of the mast cells in the lungs

Key idea: Asthma is an allergic reaction that inflames the bronchi and bronchioles.

Allergens trigger mast cells in the lungs to release histamine and other chemicals, which cause wheezing and difficulty in breathing. It is not caused by bacterial infection, tracheal inflammation, or fluid accumulation (pulmonary oedema).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Asthma may be attributed to :

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