Which of the following organ help in the blood circulation?

Options

A. Lungs
B. Heart
C. Kidney
D. Liver

Answer

**Step-by-Step Solution:**

1. **Identify the Organs Listed**: The question provides four options: lungs, heart, kidneys, and liver. We need to determine which of these organs is primarily responsible for blood circulation.

2. **Understand the Function of Each Organ**:
- **Lungs**: The primary function of the lungs is to facilitate gas exchange, specifically to oxygenate the blood and remove carbon dioxide. However, they do not pump blood.
- **Heart**: The heart is known as the "pumping organ" of the body. It is responsible for circulating blood throughout the body. It has four chambers that work together to pump oxygenated blood to the tissues and return deoxygenated blood to the lungs.
- **Kidneys**: The kidneys are involved in filtering blood and producing urine. They help in waste removal but do not play a role in blood circulation.
- **Liver**: The liver has multiple functions, including detoxification, protein synthesis, and the production of biochemicals necessary for digestion. It does not pump blood.

3. **Determine the Correct Answer**: Based on the functions of each organ, the heart is the only organ that directly assists in blood circulation. It pumps blood throughout the body, making it essential for circulation.

4. **Conclusion**: The correct answer to the question "Which of the following organ helps in the blood circulation?" is the heart.

**Final Answer**: Heart

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