Choose the correct order for the path of sperm from the testes to outside the body.

Options

A. ductus deferens - epididymis - ejaculatory duct - penis
B. epididymis -ductus deferens -ejaculatory duct -penis
C. ejaculatory duct - ductus deferens -epididymis -penis
D. penis -ejaculatory duct -epididymis -ductus deferenns

Answer

To determine the correct order for the path of sperm from the testes to outside the body, we can break down the process step by step:

### Step-by-Step Solution:

1. **Spermatogenesis in the Testes**:
- The process begins in the testes, where sperm are produced in the seminiferous tubules through a process called spermatogenesis.

2. **Rete Testis**:
- After formation, the sperm move into the rete testis, a network of tubules that collects sperm from the seminiferous tubules.

3. **Epididymis**:
- From the rete testis, sperm travel to the epididymis, where they mature and are stored.

4. **Vas Deferens (Ductus Deferens)**:
- Upon ejaculation, sperm are transported from the epididymis into the vas deferens (also known as ductus deferens), which is a muscular tube that carries sperm to the ejaculatory duct.

5. **Ejaculatory Duct**:
- The vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate gland.

6. **Urethra**:
- The ejaculatory duct opens into the urethra, the tube that carries urine and sperm out of the body.

7. **Penis**:
- Finally, the sperm exit the body through the penis during ejaculation.

### Correct Order:
- Testes → Rete Testis → Epididymis → Vas Deferens → Ejaculatory Duct → Urethra → Penis

### Conclusion:
The correct order for the path of sperm from the testes to outside the body is:
**Epididymis → Vas Deferens → Ejaculatory Duct → Urethra → Penis** (Option B).