Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to

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Q.
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to [2019]

1 reduction in the secretion of surfactant by pneumocytes

2 benign growth on mucous lining of nasal cavity

3 inflammation of bronchi and bronchioles

4 proliferation of fibrous tissues and damage of the alveolar walls

Ans.
(3)

Allergens cause bronchial asthma that stimulates release of histamine from mast cells. Symptoms of bronchial asthma are coughing, wheezing (breathing noisily), difficulty in breathing due to inflammation of bronchi and bronchioles.

Solution

Q.
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to [2019]

1 reduction in the secretion of surfactant by pneumocytes

2 benign growth on mucous lining of nasal cavity

3 inflammation of bronchi and bronchioles

4 proliferation of fibrous tissues and damage of the alveolar walls

Ans.
(3)

Allergens cause bronchial asthma that stimulates release of histamine from mast cells. Symptoms of bronchial asthma are coughing, wheezing (breathing noisily), difficulty in breathing due to inflammation of bronchi and bronchioles.

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Solution

Q. Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to [2019]

1 reduction in the secretion of surfactant by pneumocytes

2 benign growth on mucous lining of nasal cavity

3 inflammation of bronchi and bronchioles

4 proliferation of fibrous tissues and damage of the alveolar walls

Ans. (3) Allergens cause bronchial asthma that stimulates release of histamine from mast cells. Symptoms of bronchial asthma are coughing, wheezing (breathing noisily), difficulty in breathing due to inflammation of bronchi and bronchioles.

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Q.
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to [2019]

Ans.
(3)

Allergens cause bronchial asthma that stimulates release of histamine from mast cells. Symptoms of bronchial asthma are coughing, wheezing (breathing noisily), difficulty in breathing due to inflammation of bronchi and bronchioles.