Gastrin is secreted by

Options

A. Pancreas
B. Intestine
C. Liver
D. Stomach.

Answer

**Step-by-Step Solution:**

1. **Identify the Hormone in Question**: The question asks about the secretion of Gastrin.

2. **Locate the Source of Gastrin**: Gastrin is secreted by specific cells in the body. In this case, it is secreted by G cells.

3. **Determine the Location of G Cells**: G cells are located in the lining of the stomach.

4. **Understand the Function of Gastrin**: Gastrin plays a crucial role in digestion. It stimulates the secretion of gastric juices, which include hydrochloric acid, from the parietal cells in the stomach.

5. **Evaluate the Options Provided**:
- **Pancreas**: Incorrect, as it primarily secretes insulin and glucagon.
- **Intestine**: Incorrect, as it secretes hormones like secretin and cholecystokinin.
- **Liver**: Incorrect, as it releases hormones like angiotensinogen and insulin-like growth factors.
- **Stomach**: Correct, as it is the site of gastrin secretion.

6. **Conclude the Correct Answer**: Based on the information, the correct answer is that Gastrin is secreted by the stomach.

**Final Answer**: Gastrin is secreted by the stomach.

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