Question

Which structure is cut and tied off in a vasectomy?

• A. Penis
• B. Epididymis
• C. Urethra
• D. Vas deferens

Answer 1

The correct option is D

Vas deferens

The correct option is D.

Explanation of correct option:

1. Vasectomy is a surgical procedure for male sterilization and/or permanent birth control.
2. During the procedure, the male vas deferens are severed and then tied/ sealed in a manner so as to prevent sperm from entering into the seminal stream (ejaculate) and thereby prevent fertilization from occurring.

Explanation of incorrect option:

Option A:

1. Penis is a cylindrical, highly vascularized erectile organ.
2. Its function is to transfer sperm into vagina of female reproductive system.

Option B:

Epididymis is a long coiled tube that extends from the top of the testes along its side to its back.

Option C:

1. Urethra extends from penis to external opening.
2. The urethra, at different times carries both urine and sperms.

Final answer: Vas deferens is cut and tied off in a vasectomy.