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

Options

A. Adreanline
B. Glucagon
C. Gastrin
D. Thyroxine

Answer

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

### Step-by-Step Solution:

1. **Identify the Situation**: The scenario describes a resident feeling the tremors of an earthquake, which is a stressful and potentially dangerous situation.

2. **Recognize the Body's Response to Stress**: In response to stress, the body activates certain physiological responses to prepare for "fight or flight." This is a common reaction to perceived threats.

3. **Determine the Hormone Involved**: The primary hormone responsible for initiating the "fight or flight" response is adrenaline (also known as epinephrine). It is secreted by the adrenal glands.

4. **Explain the Effects of Adrenaline**: When adrenaline is released into the bloodstream, it causes several physiological changes:
- Increases heart rate and blood pressure.
- Enhances breathing rate.
- Raises blood sugar levels for quick energy.
- Prepares muscles for rapid action.

5. **Conclude the Answer**: Given that the resident is reacting to a stressful situation by climbing down quickly, the hormone that initiated this action is **adrenaline**.

### Final Answer:
The hormone that initiated the action of the scared resident climbing down the stairs rapidly is **adrenaline**.

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