Question

Feeling the tremors of an earthquake, a scared resident of seventh floor of a multistoreyed building starts climbing down the stairs rapidly. Which hormone is responsible for initiation of this action?

• A. Thyroxine
• B. Adrenaline
• C. Glucagon
• D. Gastrin

Answer 1

The correct option is B

Adrenaline

The correct option is B

Explanation of the correct option:

1. Adrenaline or epinephrine hormone is involved in any kind of stress or emergency situations and hence is known as the emergency hormone.
2. It is released from the adrenal medulla which is the inner part of the adrenal gland.
3. It also prepares the body for the process of fear, fights, and flight hence also known as 3F hormones.
4. It increases heart rate, heart contractility, breathing rate, sweating, hair-raising response, alertness, and pupil dilation.
5. It also stimulates the breakdown of glycogen which leads to increased blood glucose levels and also stimulates the breakdown of lipids and proteins.

Explanation of the incorrect option:

Option A:

1. Thyroxine is secreted by the thyroid gland located in the front of the neck.
2. It controls the endocrine part of the thyroid gland and regulates the basal metabolic rate.

Option C:

1. Glucagon is produced by beta-cells of islets of Langerhans present in the pancreas.
2. It regulates the conversion of glycogen to glucose which is known as glycogenolysis.

Option D:

1. Gastrin hormone is produced by ‘G’ cells in the stomach lining and upper small intestine to get released in blood circulation.
2. It stimulates acid secretion and gastric mucosal growth.

Final answer: Feeling the tremors of an earthquake, a frightened resident began to quickly descend the stairs to the seventh floor and the hormone involved is adrenaline.