Somatostatin produced by hypothalamus

Options

A. Stimulates the release of growth hormone
B. Controls the activity of alpha and beta cells of pancreas
C. Inhibits the releasse of growth hormone
D. Controls the reabsorption of water in kidney

Answer

### Step-by-Step Solution:

1. **Understanding Somatostatin**: Somatostatin is a peptide hormone that plays a crucial role in the regulation of various physiological processes. It is produced in two primary locations: the hypothalamus and the pancreas.

2. **Function of Somatostatin from the Hypothalamus**: The somatostatin produced by the hypothalamus primarily functions to inhibit the secretion of growth hormone (GH) from the anterior pituitary gland. This is a critical regulatory mechanism in the endocrine system.

3. **Analyzing the Options**:
- **Option 1**: "Stimulates the release of growth hormone." This statement is incorrect because somatostatin inhibits, rather than stimulates, the release of growth hormone.
- **Option 2**: "Controls activity of alpha and beta cells of pancreas." While this statement is true, it refers to the somatostatin produced by the pancreas, not the hypothalamus. Therefore, it is not applicable to the question.
- **Option 3**: "Inhibits the release of growth hormone." This statement is correct. Somatostatin from the hypothalamus indeed inhibits the release of growth hormone.
- **Option 4**: "Controls the reabsorption of water in kidney." This function is associated with the antidiuretic hormone (ADH), not somatostatin, making this statement incorrect.

4. **Conclusion**: The only correct statement regarding somatostatin produced by the hypothalamus is that it inhibits the release of growth hormone.

### Final Answer:
Somatostatin produced by the hypothalamus inhibits the release of growth hormone.

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