Question

Feeling the tremors of an earthquake, a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action ?

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

Answer 1

The Correct Option is A

 When experiencing a stressful or emergency situation, the human body undergoes a "fight-or-flight" response. This physiological reaction is initiated by the hormone adrenaline, also known as epinephrine. Adrenaline is secreted by the adrenal glands, located above each kidney, and it quickly prepares the body to respond to danger or stress.

1. Role of Adrenaline: Adrenaline increases heart rate, elevates blood pressure, and boosts energy supply by increasing glucose metabolism. It also improves muscle readiness, allowing the individual to either confront the danger or flee from it rapidly.
2. Scenario Analysis: In the given scenario, a resident on the seventh floor of a building feels the tremors of an earthquake, which is a sudden and dangerous situation. The immediate reaction to such a threat is usually to either brace for impact or escape to safety.
3. Initiation of Action: The resident's decision to climb down the stairs rapidly is initiated by the surge of adrenaline, which promotes quick responses and accelerated movement to escape the perceived danger.
4. Ruling Out Other Options:
   • Glucagon: This hormone regulates blood sugar levels but is not directly involved in the immediate stress response.
   • Gastrin: This hormone stimulates gastric acid secretion and is related to digestion, not stress or emergency response.
   • Thyroxine: Although it regulates metabolism, it does not trigger the rapid response needed for immediate stress situations.

Therefore, the correct hormone that initiated the action of climbing down the stairs rapidly is Adrenaline.