Common ingredient in secretion of salivary and Brunner's glands having role in growth, repair and regeneration is
(a) Neurotensin
(b) Somatostatin
(c) Urogastrone
(d) Enterogastrone

Options

A. Neurotensin
B. Somatostatin
C. Urogastrone
D. Enterogastrone

Answer

To solve the question regarding the common ingredient in the secretion of salivary and Brunner's glands that plays a role in growth, repair, and regeneration, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Glands**:
- The question mentions two glands: the salivary glands and Brunner's glands.
- Salivary glands are responsible for producing saliva, which contains enzymes and other substances that aid in digestion.
- Brunner's glands are located in the duodenum and secrete alkaline mucus to protect the intestinal lining and aid in digestion.

2. **Understand the Role of the Secretions**:
- The secretions from both glands are important for digestion and maintaining the health of the gastrointestinal tract.
- The question specifically asks for a common ingredient that aids in growth, repair, and regeneration.

3. **Analyze the Options**:
- **(a) Neurotensin**: This is a neuropeptide involved in regulating various physiological processes but is not known to be a common ingredient in the secretions of the mentioned glands.
- **(b) Somatostatin**: This is a peptide hormone that inhibits the secretion of other hormones and is involved in growth and repair mechanisms. It is found in both salivary and Brunner's glands.
- **(c) Urogastrone**: This is a substance that inhibits gastric acid secretion and is primarily found in the urine, not commonly associated with the secretions of the glands in question.
- **(d) Enterogastrone**: This is a hormone released by the intestinal mucosa that inhibits gastric motility and secretion but is not a common ingredient in the secretions of the salivary and Brunner's glands.

4. **Determine the Correct Answer**:
- After analyzing the options, **(b) Somatostatin** is the correct answer as it is a common ingredient in the secretions of both the salivary and Brunner's glands and plays a significant role in growth, repair, and regeneration.

### Final Answer:
**(b) Somatostatin**