Vas deferens

The vas deferens is a muscular tube in the male reproductive system that transports sperm from the epididymis, where sperm mature, to the urethra during ejaculation. It is part of the pathway that allows sperm to leave the body and contribute to reproduction. During ejaculation, the vas deferens contracts to propel sperm forward, mixed with fluids to form semen. It plays a crucial role in male fertility and is often involved in procedures like vasectomies, where it is cut or sealed to prevent sperm from reaching the semen.