Anatomiccal observation on umbilical vein branches in the fetal

To explore the umbilical vein branches of the fetal and the quantity of blood passing through the liver and the ductus venosus. Method Sixty two normal fetal livers were chosen after being fixed with formalin. The branches of umbilical vein were anatomized, observed and measured.Results There was a significant difference of the total cross section area between the umbilical vein branches pass through the liver and the ductus venosus (P0. 001). The sectional area passing through the liver conclusion was larger than that of ductus venosus.Conclusion In the fetal, the great majority of umbilical blood passes through the liver to in ferior vena cava and only small part flows into the ductus venosus. There is over two - thirds umbilical vein blood passing through the 1iver to left lobe.