Question 13

The urethra is part of both the male reproductive system and urinary system.

The urethra serves as a conduit for both urine and semen, making it a vital structure within both the male reproductive and urinary systems.

A) Epididymis

The epididymis is part of the male reproductive system, where sperm mature and are stored. However, it does not play a role in the urinary system, as it is not involved in the passage of urine.

B) Ureter

The ureters are tubes that transport urine from the kidneys to the bladder and are solely part of the urinary system. They do not participate in the male reproductive system, thus making this option incorrect.

C) Testis

The testis is responsible for producing sperm and hormones in the male reproductive system. It is not involved in the urinary system at all, rendering this option incorrect as well.

D) Urethra

The urethra is the only structure that functions in both systems; it allows for the expulsion of urine from the urinary system and the passage of semen during ejaculation in the reproductive system. This dual function is what makes it the correct answer.

Conclusion

The urethra is uniquely positioned to serve both the male reproductive and urinary systems, fulfilling essential functions in each. The other options, while related to either the reproductive or urinary systems, do not share this dual role, confirming that D is the only correct choice.