Final answer:
The seminal vesicles release semen, a nourishing substance.
Step-by-step explanation:
The seminal vesicles release a nourishing substance called semen. Semen is a fluid that carries sperm through the urethra and out of the body. It contains secretions from the seminal vesicles, which provide important compounds for the sperm, including nutrients, electrolytes, and pH buffering.