In the adult, the hepatic portal system carries nutrients absorbed from the digestive tract to the liver. In the fetus, nutrients are absorbed at the placenta, and the vessel that carries these nutrients to the liver is the
A. hepatic portal vein.
B. placental vein.
C. umbilical vein.
D. internal iliac vein.
Answer:C
In the adult, the hepatic portal system carries nutrients absorbed from the digestive tract to the liver. In the fetus, nutrients are absorbed at the placenta, and the vessel that carries these nutrients to the liver is the
A. hepatic portal vein. B. placental vein. C. umbilical vein. D. internal iliac vein.