Question

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

• A. benign growth on mucous lining of nasal cavity
• B. inflammation of bronchi and bronchioles
• C. proliferation of fibrous tissues and damage of the alveolar walls
• D. reduction in the secretion of surfactants by pneumocytes

Answer 1

The correct option is B

inflammation of bronchi and bronchioles

The correct option is B

Explanation of the correct option:

1. When tiny, minute particles enter the bronchioles, they induce respiratory problems. Invading unwelcome foreign particles irritates and inflames the body's internal systems. As a result, breathing is unpleasant and difficult.
2. Asthma is a condition marked by difficulties breathing. Because the bronchioles are inflamed, it causes wheezing. Allergies are brought on by allergens and pollutants that enter the nasal cavity.
3. Respiratory problems are more prevalent in urban areas because of the increased pollution there. The lining of your bronchial tubes, which transport air to and from your lungs, becomes inflamed when you have bronchitis.

Explanation of the incorrect options:

Option (A)

Description:

1. Sinonasal hemangiomas and paranasal sinuses are the results of benign development on the mucosa lining of the nasal cavity.
2. Instead of the lungs, the nasal cavity is where this happens.
3. Surface tension in the alveoli increases due to the loss of functional surfactant, leading to severe breathing issues.

Option (C)

Description:

1. Fibrous tissue growth and alveolar wall deterioration The lungs' largest blood arteries are called alveoli.
2. They become seriously damaged, and the growth of fibrous tissues results in pulmonary fibrosis.
3. Smoke from cigarettes is mainly to blame for this. A proliferation of fibrous connective tissue is known as fibrosis.

Option (D)

Description:

1. Reduction in the release of surfactants by pneumocytes: Pneumocytes keep the alveoli from collapsing by maintaining surface tension, therefore they produce a variety of surfactants to do so.
2. The alveoli will shut down and die if the release of surfactants declines.
3. Surface tension in the alveoli increases due to the loss of functional surfactant, leading to severe breathing issues.

Final Answer: Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from a respiratory disorder causing wheezing due to inflammation of bronchi and bronchioles.