If nerves supplying heart are cut, the heart will

Options

A. Shrink
B. Beat arthythmically
C. Beat ryhthmically
D. Stop

Explanation

To answer the question, "If nerves supplying the heart are cut, the heart will," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Heart Function**: The heart is a muscular organ that pumps blood throughout the body. It has its own intrinsic rhythm, which means it can beat independently of external nerve signals.

2. **Role of Nerves**: The heart is innervated by the autonomic nervous system, which includes sympathetic and parasympathetic nerves. These nerves help regulate the heart rate and rhythm. However, they are not essential for the heart to beat.

3. **Effect of Cutting Nerves**: If the nerves supplying the heart are cut, the heart will not receive signals from the nervous system. However, the heart muscle cells (myocytes) can still generate electrical impulses on their own due to their intrinsic pacemaker activity.

4. **Heart's Response**: After the nerve supply is cut, the heart will continue to beat, but the rhythm of the heartbeat may become irregular. This condition is known as arrhythmia. The heart will keep beating until the tissues eventually die due to lack of oxygen and nutrients, but it will not stop immediately.

5. **Conclusion**: Therefore, the correct answer to the question is that the heart will beat arrhythmically if the nerves supplying it are cut.

### Final Answer:
If nerves supplying the heart are cut, the heart will beat arrhythmically.

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