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

Options

A. Adrenaline
B. Glucagon
C. Gastrin
D. Thyroxin

Answer

To answer the question regarding which hormone initiated the action of a scared resident rapidly climbing down the stairs during an earthquake, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Scenario**: The question describes a situation where a resident feels tremors from an earthquake and reacts by climbing down the stairs rapidly. This indicates a state of fear or stress.

2. **Identifying the Hormones**: The options provided are:
- Adrenaline
- Glucagon
- Gastrin
- Thyroxine

3. **Analyzing Each Hormone**:
- **Adrenaline**: Also known as epinephrine, this hormone is secreted by the adrenal glands during stressful situations. It is commonly referred to as the "fight or flight" hormone because it prepares the body to respond to emergencies. It increases heart rate, respiration, and energy availability, making it crucial for quick physical responses.
- **Glucagon**: This hormone is produced by the pancreas and primarily functions to increase blood glucose levels. It is not directly related to immediate physical responses to stress.
- **Gastrin**: Secreted by the stomach lining, gastrin stimulates the secretion of gastric acid. It is involved in digestion and not in the stress response.
- **Thyroxine**: This hormone, produced by the thyroid gland, regulates metabolism and growth but does not play a direct role in immediate stress responses.

4. **Conclusion**: Given the context of the scenario, where the resident is experiencing fear due to an earthquake, the hormone that initiates the rapid physical response (climbing down the stairs) is **Adrenaline**. This hormone is specifically designed to prepare the body for quick action in stressful situations.

### Final Answer:
The hormone that initiated this action is **Adrenaline**.

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