Thymosin stimulates

Options

A. Milk secretion
B. Erythrocytes
C. T-lymphocytes
D. Melanocytes

Answer

**Step-by-Step Solution:**

1. **Identify the Hormone**: The question asks about the function of thymosin, which is a hormone secreted by the thymus gland.

2. **Understand the Role of Thymosin**: Thymosin plays a crucial role in the immune system, particularly in the development and maturation of T-lymphocytes (also known as T-cells).

3. **Analyze the Options**:
- a. Milk secretion: This is primarily regulated by the hormone prolactin, not thymosin.
- b. Erythrocytes: The production of red blood cells (erythrocytes) is stimulated by erythropoietin, not thymosin.
- c. T-lymphocytes: Thymosin directly stimulates the maturation of T-lymphocytes, making this option relevant.
- d. Melanocytes: The activity of melanocytes is influenced by melanocyte-stimulating hormone (MSH), not thymosin.

4. **Conclusion**: Based on the analysis, thymosin specifically stimulates the maturation of T-lymphocytes.

5. **Final Answer**: The correct answer is option C, T-lymphocytes.

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