1. Blood from the placenta is carried to the fetus by the umbilical vein . 2. There is only one umbilical vein in the human umbilical cord. 3. The round ligament represents the remnant of the fetal umbilical vein . 4. It receives blood from the vitelline vein, umbilical vein and common cardinal vein. 5. See Umbilical vein . talk ) 12 : 13, 20 December 2010 ( UTC) 6. Subsequently, the pressure is 20 mm Hg in the umbilical vein , returning to the heart. 7. The umbilical cord in some mammals, including cows and sheep, contains two distinct umbilical veins . 8. In the disorders of cirrhosis and portal hypertension, the umbilical vein can open up again. 9. The third hypothesis was criticized due to no vascular supplement of anterior abdominal wall by umbilical vein . 10. After circulating through the capillaries of the villi, blood returns to the embryo through the umbilical vein .
