What does the scrotum protect in males?

The scrotum is a vital structure in the male reproductive system, primarily responsible for protecting and regulating the temperature of the testes. The testes are the male reproductive glands that produce sperm and hormones, including testosterone.

The scrotum helps maintain an optimal temperature for sperm production, which is slightly lower than the normal body temperature. By contracting or relaxing in response to temperature changes, the scrotum ensures that the testes remain at this ideal temperature for effective sperm development and overall reproductive health.

The other structures mentioned, such as the bladder, urethra, and prostate, have different functions and are not physically housed within the scrotum. Thus, the correct answer highlights the protective role of the scrotum specifically regarding the testes.