Spermatozoa are nourished during their development by

Options

A. Sertoli cells
B. Interstitial cells
C. Connective tissue cells
D. None of the above.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks about the source of nourishment for spermatozoa during their development.

2. **Identifying the Relevant Structures:**
In the male reproductive system, spermatozoa develop in the seminiferous tubules of the testes. Within these tubules, there are specific types of cells that play a role in the development of sperm.

3. **Recognizing the Types of Cells:**
- **Spermatogonia:** These are the male germ cells that undergo division to form sperm.
- **Sertoli Cells:** These are supportive cells located in the seminiferous tubules that provide nourishment and support to the developing sperm cells.
- **Interstitial Cells (Leydig Cells):** These cells are located outside the seminiferous tubules and produce testosterone but do not directly nourish sperm.

4. **Determining the Correct Answer:**
The Sertoli cells are specifically responsible for nourishing the developing spermatozoa. They provide essential nutrients and create an optimal environment for spermatogenesis (the process of sperm formation).

5. **Conclusion:**
Therefore, the correct answer to the question "Spermatozoa are nourished during their development by" is **Sertoli cells**.

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