Sperm start growing in the testicles. The sperm travel to the epididymis, where they mature. During ejaculation, sperm move out of both epididymides (plural of epididymis). From there, sperm move through both of the vas deferens into the urethra (the tube that runs through the penis) and out of the body.
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerChristopher G. Wood, MD, FACS - Urology, Oncology
Current as ofSeptember 9, 2014