The hormone that can increase the value rate of breakdown of glycogen ,the volume of blood in vessels and rate of heartbeat is

Options

A. insulin
B. glucagon
C. adrenaline.
D. FSH.

Answer

To solve the question regarding which hormone increases the rate of breakdown of glycogen, the volume of blood in vessels, and the rate of heartbeat, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Hormones**: The question presents four hormones: insulin, glucagon, adrenaline, and FSH (follicle-stimulating hormone).

2. **Understand the Functions of Each Hormone**:
- **Insulin**: Produced by the pancreas, it lowers blood glucose levels by promoting the uptake of glucose into cells and stimulating glycogen synthesis.
- **Glucagon**: Also produced by the pancreas, it raises blood glucose levels by stimulating the breakdown of glycogen into glucose.
- **Adrenaline (Epinephrine)**: Produced by the adrenal medulla, it is known as an emergency hormone. It increases heart rate, stimulates the breakdown of glycogen (glycogenolysis), and increases blood flow to muscles.
- **FSH**: Produced by the pituitary gland, it is primarily involved in reproductive processes and does not significantly affect glycogen breakdown or heart rate.

3. **Analyze the Effects on Glycogen Breakdown**:
- Insulin decreases glycogen breakdown.
- Glucagon increases blood glucose but is not primarily responsible for increasing heart rate.
- Adrenaline increases the breakdown of glycogen and also increases heart rate.

4. **Evaluate the Effects on Blood Volume and Heart Rate**:
- Adrenaline increases blood volume in vessels by causing vasodilation in some areas and vasoconstriction in others, leading to increased blood pressure and heart rate.

5. **Conclusion**: Based on the functions and effects of the hormones analyzed, the hormone that increases the rate of breakdown of glycogen, the volume of blood in vessels, and the rate of heartbeat is **Adrenaline**.

### Final Answer:
The correct answer is **Adrenaline**.

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