Gastric juice is secreted under the influence of hormone

Options

A. Renin
B. Enterogastrone
C. Enterocrinin
D. Gastrin

Answer

**Step-by-Step Solution:**

1. **Understanding Gastric Juice**: Gastric juice is a digestive fluid produced in the stomach, primarily composed of hydrochloric acid, pepsinogen, and intrinsic factor. Its secretion is regulated by various hormones.

2. **Identifying the Hormones**: The question asks which hormone influences the secretion of gastric juice. The options provided include:
- Renin
- Enterogastron
- Enterocrinine
- Gastrin

3. **Analyzing Each Option**:
- **Renin**: This hormone is secreted by the juxtaglomerular apparatus of the kidney and is involved in blood pressure regulation and fluid balance. It does not play a role in gastric juice secretion.
- **Enterogastron**: Also known as gastric inhibitory polypeptide (GIP), this hormone inhibits gastric secretion. Therefore, it does not stimulate gastric juice production.
- **Enterocrinine**: This hormone is secreted by the small intestine and stimulates the release of intestinal enzymes. It does not influence gastric juice secretion.
- **Gastrin**: This hormone is secreted by the pyloric part of the stomach. It stimulates the gastric glands to secrete gastric juice and also increases gastric motility.

4. **Conclusion**: Based on the analysis, the hormone that stimulates the secretion of gastric juice is **Gastrin**. Therefore, the correct answer is option 4.

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