Question

Asthma may be attributed to
A. Bacterial infection of the lungs
B. Allergic reaction of the mast cells in the lungs
C. Inflammation of the trachea
D. Accumulation of fluid in the lungs

Answer 1

Asthma is described as a condition in which a person’s airways become narrow and swell and produce extra mucus from its normal concentration. Due to these changes, breathing becomes difficult. This results in a coughing and whistling sound during breathing. This also leads to the shortening of breath.

Complete answer:
Asthma is characterized as an allergic reaction of the mast cells in the lungs. The common symptoms of asthma include coughing, wheezing, and chest tightness. Asthma is also known as bronchial asthma or reactive airway disease. An allergic reaction is a type of reaction that is induced in our body when any foreign cell invades.

The body cells interpret these foreign substances or allergens as harmful material. The immune system reacts to these allergens and produces a chemical which is known as histamine. This chemical causes allergy symptoms such as inflammation, sneezing and coughing.

A mast cell is described as a migrant cell of connective tissues. It contains granules that are rich in histamine and heparin. These cells are also known as mastocytes or a labrocyte. These cells are a part of the immune and neuroimmune systems.

Hence, the correct answer is option (B). Asthma is an allergic reaction of the mast cells in the lungs.

Note: Various types of irritants and allergens can cause asthma. The allergens may be pollen, dust mites, mould spores, or particles of cockroach waste. These are responsible for triggering allergies. Anxiety and depression also cause asthma sometimes. They are associated with poor asthma control.