Name the hormone which increases the secretion of pepsinogen and hydrochloric acid from gastric glands.

Answer

To answer the question, "Name the hormone which increases the secretion of pepsinogen and hydrochloric acid from gastric glands," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: The question is about hormones and their role in the digestive system, specifically regarding the gastric glands.

2. **Understand Gastric Glands**: Gastric glands are responsible for producing digestive juices, including pepsinogen (a precursor to the enzyme pepsin) and hydrochloric acid (HCl).

3. **Recognize the Secretions**:
- **Pepsinogen** is an inactive form of the enzyme pepsin, which is activated by HCl.
- **Hydrochloric Acid (HCl)** creates an acidic environment that is essential for the activation of pepsinogen to pepsin and aids in digestion.

4. **Determine the Hormone**: The hormone that stimulates the gastric glands to increase the secretion of both pepsinogen and hydrochloric acid is known as **gastrin**.

5. **Conclusion**: Therefore, the hormone that increases the secretion of pepsinogen and hydrochloric acid from gastric glands is **gastrin**.

### Final Answer:
The hormone which increases the secretion of pepsinogen and hydrochloric acid from gastric glands is **gastrin**.

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