Heparin is synthesised in

Options

A. Kidney
B. Salivary glands
C. Pancreas
D. Liver.

Answer

**Step-by-Step Solution:**

1. **Understanding Heparin**: Heparin is a naturally occurring anticoagulant, which means it helps prevent blood clotting. It plays a crucial role in maintaining blood flow and preventing thrombosis.

2. **Identifying the Synthesis Site**: The question asks where heparin is synthesized. The options provided are kidneys, salivary glands, pancreas, and liver.

3. **Analyzing Each Option**:
- **Kidneys**: While kidneys have various functions, they are not known for synthesizing heparin.
- **Salivary Glands**: Salivary glands produce saliva and enzymes, but they do not synthesize heparin.
- **Pancreas**: The pancreas is involved in digestion and insulin production, but it does not synthesize heparin.
- **Liver**: The liver is known for producing various proteins and substances, including heparin. It is the primary site for heparin synthesis and storage.

4. **Conclusion**: Based on the analysis, the correct answer is that heparin is synthesized in the **liver**.

5. **Additional Information**: Heparin is also produced in other cells like mast cells and basophils, but the liver is the main site of synthesis and storage.

**Final Answer**: Heparin is synthesized in the **liver**.

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