Intrinsic factor,essential for absorption of vitamin B12 is secreted by
(a) Chief cells
(b) Peptic cell
(c) Oxyntic cells
(d) Mucous cells

Options

A. Chief cells
B. Peptic cell
C. Oxytocin cells
D. Mucous cells

Answer

To solve the question about which cells secrete intrinsic factor, essential for the absorption of vitamin B12, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Intrinsic Factor**:
- Intrinsic factor is a glycoprotein that is crucial for the absorption of vitamin B12 (cobalamin) in the intestine.

2. **Identify the Source of Intrinsic Factor**:
- The intrinsic factor is produced by specific cells in the stomach.

3. **Know the Types of Cells in the Stomach**:
- The stomach contains several types of cells:
- Chief cells (secrete pepsinogen)
- Peptic cells (another name for chief cells)
- Oxyntic cells (also known as parietal cells, which secrete hydrochloric acid and intrinsic factor)
- Mucous cells (secrete mucus)

4. **Determine Which Cells Secrete Intrinsic Factor**:
- Among the options provided:
- Chief cells and peptic cells do not secrete intrinsic factor.
- Mucous cells also do not have this function.
- Oxyntic cells (parietal cells) are responsible for secreting intrinsic factor.

5. **Select the Correct Answer**:
- Based on the information, the correct answer is (c) Oxyntic cells.

### Final Answer:
The intrinsic factor, essential for the absorption of vitamin B12, is secreted by **(c) Oxyntic cells**.

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