Vasa efferentia are the ductules leading from

Options

A. Testicular lobules to rete testis
B. Rete testis to vas deferens
C. Vas deferens to epididymis
D. Epididymis to urethra

Answer

To solve the question "Vasa efferentia are the ductules leading from," we will break down the information step by step.

### Step-by-Step Solution:

1. **Understanding the Male Reproductive System**:
- The male reproductive system includes structures such as the testis, epididymis, vas deferens, and urethra.

2. **Sperm Production**:
- Sperm is produced in the testis, specifically within structures called seminiferous tubules located in the testicular lobules.

3. **Testicular Lobules**:
- Each testis contains about 250 testicular lobules. These lobules are the chambers where sperm production occurs.

4. **Pathway of Sperm**:
- The seminiferous tubules in the testicular lobules lead to straight tubules known as tubuli recti.

5. **Retetestis**:
- The tubuli recti converge to form a network called the retetestis.

6. **Vasa Efferentia**:
- The vasa efferentia are the ductules that connect the retetestis to the epididymis. They transport sperm from the retetestis to the epididymis.

7. **Epididymis**:
- The epididymis is where sperm are stored and mature before being transported further.

8. **Conclusion**:
- Based on the above information, the vasa efferentia lead from the retetestis to the epididymis.

### Answer:
The correct answer is: **Retetestis to Epididymis** (not listed as an option, but inferred from the explanation).