Which organ produces heparin?

Options

A. Pancreas
B. Liver
C. Small intestine
D. Duodenum

Explanation

**Step-by-Step Solution:**

1. **Understanding Heparin**: Heparin is a substance that acts as an anticoagulant, meaning it helps to prevent blood clotting.

2. **Identifying the Organs**: The question asks which organ produces Heparin. The options provided are pancreas, liver, small intestine, and duodenum.

3. **Analyzing Each Option**:
- **Pancreas**: The pancreas is primarily involved in digestion and insulin production, not in the production of Heparin.
- **Liver**: The liver is known for producing various substances, including Heparin. It plays a crucial role in metabolism and detoxification.
- **Small Intestine**: The small intestine is mainly responsible for digestion and absorption of nutrients, not for producing Heparin.
- **Duodenum**: The duodenum is the first part of the small intestine and is involved in digestion, but it does not produce Heparin.

4. **Conclusion**: Based on the analysis, the organ that produces Heparin is the **liver**.

5. **Final Answer**: The correct answer is **B, liver**.

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