The male reproductive system is primarily responsible for producing sperm and hormones, particularly testosterone. It includes several key structures such as the testes, which produce sperm and hormones, and the epididymis, where sperm mature. Other important components are the vas deferens, which transports sperm, and the seminal vesicles and prostate gland, which produce fluids that nourish and transport sperm. During sexual arousal, sperm travel from the testes through the vas deferens and mix with fluids from the seminal vesicles and prostate gland to form semen. This mixture is then expelled through the urethra during ejaculation. The male reproductive system plays a crucial role in reproduction and overall male health.