Glucagon is produced by

Options

A. Peptic cells
B. Oxyntic cells
C. Alpha cells
D. Beta cells.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the source of glucagon production in the body.

2. **Analyzing the Options**:
- **Option 1: Peptic Cells**: These cells are responsible for secreting pepsinogen, which is an inactive enzyme that helps in protein digestion. Since peptic cells do not produce glucagon, this option is incorrect.

- **Option 2: Oglintic Cells (Parietal Cells)**: These cells secrete hydrochloric acid (HCl) in the stomach, which aids in digestion. They do not produce glucagon, making this option also incorrect.

- **Option 3: Alpha Cells**: These cells are located in the islets of Langerhans in the pancreas. They are responsible for producing glucagon, which plays a crucial role in increasing blood sugar levels. This option is correct.

- **Option 4: Beta Cells**: These cells, also found in the islets of Langerhans, secrete insulin, which lowers blood sugar levels. Since they do not produce glucagon, this option is incorrect.

3. **Conclusion**: Based on the analysis, glucagon is produced by the alpha cells of the islets of Langerhans in the pancreas.

**Final Answer**: Glucagon is produced by the alpha cells of the islets of Langerhans in the pancreas.

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