Cells of Leydig occur in

Options

A. Testis of Frog
B. Kidney of Frog
C. Kidney of Man
D. Testis of Man.

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks where the Leydig cells occur.

2. **Understand Leydig Cells**: Leydig cells, also known as interstitial cells, are specialized cells found in the male reproductive system.

3. **Consider the Options**: The options provided are:
- Testis of frog
- Kidney of frog
- Kidney of man
- Testis of man

4. **Analyze Each Option**:
- **Testis of Frog**: While frogs have Leydig cells, the question specifically asks about human anatomy.
- **Kidney of Frog**: Leydig cells are not found in the kidneys of any species; they are specific to the testes.
- **Kidney of Man**: Similar to the frog, Leydig cells are not present in the kidneys of humans.
- **Testis of Man**: This is where Leydig cells are primarily located.

5. **Conclude the Answer**: Leydig cells occur in the testis of man. They are located in the interstitial space outside the seminiferous tubules and are responsible for producing male sex hormones, particularly testosterone.

6. **Final Answer**: The cells of Leydig occur in the testis of man.

---