🔬 Male Reproductive System: How It Works 🔬 The prostate gland, seminal vesicles, and ductus deferens are critical components of male reproductive health. The prostate produces seminal fluid, which protects and nourishes sperm, while the seminal vesicles produce the majority of the fluid that makes up semen, providing energy for sperm cells. The ductus deferens (or vas deferens) is the tube that transports sperm from the testes to the urethra during ejaculation. Each of these structures works t