Question

Smoking can cause

• A. Bronchitis
• B. Tuberculosis
• C. Malaria
• D. Influenza

Answer 1

The correct option is A Bronchitis

Chronic bronchitis occurs when the bronchial tubes are constantly irritated and inflamed. When inflammation of the bronchial tubes occurs, the lining of the airways swells and produces an excess amount of mucus. Both of these issues obstruct airflow and make breathing more difficult. Cigarette smoke contains thousands of chemical components. When we breathe in cigarette smoke, the chemicals irritate and activate certain white blood cells (macrophages) and cells that make up the lining of the airways (epithelial cells). This causes the cells to release multiple types of cytokines, which are small signaling proteins that cause the airway lining to thicken and airways to become inflamed. The persistent airway inflammation caused by cigarette smoke can cause a cycle of injury and repair that changes the structure of the airways and makes them narrower.

Therefore, the correct answer is option A.