● First part of the male duct system
● Hugs the posterior surface of the testis
● Highly convoluted/coiled tube about 6 meters (20 feet)
● Provides a temporary storage site for the immature sperm
➔ Sperm mature and develop the ability to swim as they travel along the epididymis (takes 20 days)
● When a man is sexually stimulated, he ejaculates.
REMEMBER: During ejaculation, the walls of the epididymis contract to propel sperm into the next part: the ductus (vas) deferens