What do male accessory glands do?

Male accessory glands, including the seminal vesicles, prostate gland, and bulbourethral glands, play a crucial role in the male reproductive system by producing components of semen. The seminal vesicles contribute a significant portion of the fluid, providing nutrients and mobility for sperm. The prostate gland adds additional fluids that help to nourish sperm and enhance their motility, while the bulbourethral glands secrete a pre-ejaculatory fluid that lubricates the urethra. Together, these glands ensure the viability and transport of sperm during ejaculation.