What is the function of the seminal vesicles and prostate gland?

The seminal vesicles and prostate gland play a crucial role in reproductive physiology by producing fluids that nourish sperm. The seminal vesicles secrete a significant portion of the seminal fluid, which contains fructose and other substances that provide energy to the sperm as they travel through the female reproductive system. This nourishment is essential for the viability and motility of sperm, enhancing the chances of successful fertilization.

Additionally, the prostate gland contributes to the seminal fluid by producing a milky, alkaline secretion that helps to neutralize the acidity of the female reproductive tract, further facilitating sperm survival during their journey. This alkaline environment is vital for maintaining optimal conditions for sperm activity.

This synergy between the seminal vesicles and prostate gland ensures that sperm are not only capable of movement but also well-equipped to reach and fertilize an egg. Other functions, such as producing testosterone or storing mature sperm, are associated with different structures in the male reproductive system, making the provided answer the most accurate regarding the specific roles of the seminal vesicles and prostate gland.