Heart murmurs are produced due to

Options

A. failure in the opening of valve
B. inefficient pumping of blood from ventricles.
C. failure of valves to close tightly causing leakage of blood.
D. irregular heart beat.

Answer

To solve the question regarding what produces heart murmurs, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Heart Murmurs**:
- Heart murmurs are abnormal sounds produced during the heartbeat cycle. They are often described as a whooshing or swishing sound.

2. **Identifying Causes**:
- Heart murmurs can be caused by various factors, including abnormalities in blood flow or issues with the heart valves.

3. **Evaluating the Options**:
- **Option A**: Failure in the opening of blood - This does not directly relate to the sound produced, as it primarily refers to blood flow issues.
- **Option B**: Inefficient pumping of blood from ventricles - While this can lead to heart problems, it does not specifically cause murmurs.
- **Option C**: Failure of the valves to close tightly causing leakage of blood - This option directly relates to the mechanism of heart murmurs, as it describes how improper valve function can lead to abnormal sounds.
- **Option D**: Irregular heartbeat - This may cause other sounds but is not specifically linked to the characteristic sound of murmurs.

4. **Conclusion**:
- The most accurate answer is **Option C**, which states that heart murmurs are produced due to the failure of the valves to close tightly, leading to leakage of blood.

### Final Answer:
Heart murmurs are produced due to the failure of the valves to close tightly, causing leakage of blood (Option C).

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