Oxygenated blood from fetus is carried by:
b. Umbilical vein(Ref: Nelson's 20/e p 2161-2162, Ghai 8/e p 402)Blood oxygenated in placenta returns via umbilical vein, which enter the fetus at the umbilicus and joins portal vein
Umbilical artery
Umbilical vein
Ductus venosus
Hypogastric artery
C.V.S.