The part of the brain that controls heart beat is the

Options

A. medulla
B. cerebrum
C. cerebellum
D. hypothalamus

Answer

To answer the question, "The part of the brain that controls heart beat is the," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are:
- a) Medulla
- b) Cerebrum
- c) Cerebellum
- d) Hypothalamus

2. **Understand the Functions of Each Brain Part**:
- **Cerebrum**: This part of the brain is responsible for higher brain functions such as thinking, decision-making, perception, and learning.
- **Cerebellum**: This area is crucial for coordination and balance of the body.
- **Hypothalamus**: This part regulates various autonomic functions such as temperature control, hunger, thirst, and satiety.
- **Medulla Oblongata**: This is part of the brainstem and contains the cardiovascular center, which plays a key role in regulating heart rate.

3. **Focus on Heartbeat Control**: The heart has its own pacemaker cells that can generate impulses to cause it to beat. However, the brain can influence the heart rate in response to various conditions (e.g., stress, exercise).

4. **Determine the Correct Answer**: Since the medulla oblongata contains the cardiovascular center that regulates the heart rate, the correct answer is:
- **Medulla (Option a)**.

### Final Answer:
The part of the brain that controls heart beat is the **Medulla**.

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