What is the function of the prostate gland in males?

The prostate gland plays a crucial role in male reproductive health by contributing to the seminal fluid, which is an essential component of semen. This fluid helps to nourish and transport sperm during ejaculation, enhancing reproductive success. The prostate produces a fluid that makes up about 30% of the seminal fluid volume; this fluid contains enzymes, zinc, and other substances that support sperm function and viability.

While some glands, like the testes, are primarily involved in hormone production, the prostate's primary function ties directly to its contribution to seminal fluid. Other options reference functions that are not directly associated with the prostate's role, such as hormone production, blood filtration, or urine flow control. The prostate does, however, have some indirect effects on urine flow, as it encircles the urethra, but its main function remains its significant contribution to the reproductive system through the production of seminal fluid.