Final answer:
The vas deferens is the tube that carries sperm from the epididymis to the urethra in the male reproductive system.
Step-by-step explanation:
Male Reproductive System
The tube that carries sperm out of the testes is called the vas deferens. It functions to transport sperm from the epididymis, where they mature and develop tails, to the ejaculatory ducts and then to the urethra. The prostate gland, while not responsible for carrying sperm, secretes a fluid that mixes with the sperm to form semen, which then travels through the urethra and out of the body. Conversely, the oviduct is not part of the male anatomy but is instead a female reproductive tract that carries eggs from the ovaries to the uterus.