The epididymis is a component of the male reproductive system. It is a thread-like tube, which connects the testes with the vas deferens.
More About Epididymis
The epididymis is a tightly coiled, tube-like structure that begins at the top of the testes and connects to the vas deferens. The epididymis is one of four organs that are involved in the production of semen. The epididymis produces fluid which helps preserve the semen and keep the sperm alive. The maturation of sperm occurs within the epididymis.