Vas Deferens, Ductus Deferens, or Seminal Duct
duct carrying the sperm from the epididymis to the urethra. The spermatic cord encloses each vas deferens with nerves, pymphatic, arteries, and veins. The urethra also connects with the urinary bladder and carries urine outside the body. A circular muscle constricts during intercourse to prevent urination.