Heparin is secreted by

Options

A. Oxyntic cells
B. Mast cells
C. Goblet cells
D. All the above.

Answer

**Step-by-Step Solution:**

1. **Understanding Heparin:**
- Heparin is an anticoagulant, which means it helps to prevent the formation of blood clots in blood vessels.

2. **Identifying the Source of Heparin:**
- Heparin is produced naturally in the body, specifically by certain types of cells.

3. **Reviewing the Options:**
- The question provides four options: auxintic cells, mast cells, goblet cells, and all of the above.
- Auxintic cells (also known as parietal cells) are responsible for secreting hydrochloric acid and intrinsic factor, not heparin.
- Goblet cells are specialized for secreting mucus and do not produce heparin.

4. **Correct Answer:**
- The correct answer is mast cells. Mast cells are known to secrete heparin, which plays a crucial role in the body’s response to injury and inflammation.

5. **Conclusion:**
- Therefore, the answer to the question "Heparin is secreted by" is mast cells.

**Final Answer:** Mast cells.

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