Question 13

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

The urethra serves as a dual-purpose duct in males, functioning both in the urinary system to carry urine from the bladder and in the reproductive system to transport semen during ejaculation.

A) Epidermis

The epidermis is the outer layer of skin and is not involved in either the urinary or reproductive systems. Its functions are primarily protective and do not relate to the processes of urination or reproduction.

B) Ureter

The ureter is a tube that connects the kidneys to the bladder, playing a crucial role in the urinary system. However, it does not participate in the reproductive system, making it an incorrect choice for this question.

C) Testis

The testis is a key organ in the male reproductive system, responsible for producing sperm and hormones. Nevertheless, it does not have any function related to the urinary system, which disqualifies it from being the correct answer.

D) Urethra

The urethra is the correct answer as it is a shared duct in the male anatomy that serves both the urinary system, by allowing urine to exit the bladder, and the reproductive system, by facilitating the ejaculation of semen.

Conclusion

The urethra is uniquely positioned as a crucial component of both the male reproductive and urinary systems, making it the only correct answer among the choices provided. The other options do not fulfill the requirement of being part of both systems, confirming the urethra's singular importance in this context.