Multiple choice Placenta connects to the fetus by an umbilical cord, which contains _________. one umbilical artery and one umbilical vein two umbilical arteries and one umbilical vein two umbilical arteries and two umbilical veins one umbilical artery and two umbilical veins three umbilical veins and one umbilical artery Reveal answer Fill a bubble to check yourself B Correct answer Explanation Placenta connects to the fetus by an umbilical cord, which contains two umbilical arteries and one umbilical vein.