What would happen if the vas deferens is tied up through a small incision on the scrotum

Options

A. Secretion of semen is failed
B. Sperms become immotile
C. Developing sperms are not nourished
D. Semen is without sperms

Answer

### Step-by-Step Solution:

1. **Understanding the Vas Deferens**: The vas deferens is a tube that carries sperm from the epididymis to the ejaculatory duct. It plays a crucial role in the male reproductive system.

2. **Procedure of Vasectomy**: When the vas deferens is tied (a procedure known as vasectomy), it involves making a small incision in the scrotum, cutting the vas deferens, and then sealing it. This prevents sperm from traveling through the vas deferens.

3. **Effect on Sperm Transport**: After the vas deferens is cut and tied, sperm produced in the testes can no longer reach the ejaculatory duct. As a result, sperm cannot mix with seminal fluid to form semen.

4. **Semen Composition**: Semen is composed of sperm and seminal fluid. Since the sperm cannot enter the seminal vesicles due to the blocked vas deferens, the semen that is ejaculated will be devoid of sperm.

5. **Conclusion**: The primary outcome of tying the vas deferens is that the semen will be without sperm, making it a permanent method of contraception for males.

### Final Answer:
If the vas deferens is tied up through a small incision on the scrotum, the semen will be without sperm, as the sperm cannot travel from the testes to the ejaculatory duct.

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