(i)___ carries blood from digestive tract to liver and (ii)_____carries blood from the liver to the inferior vena cava.
(i)Hepatic portal vein,(ii)hepatic vein
The hepatic portal vein carries blood rich in nutrients such as amino acids and glucose from different parts of the digestive tract to the liver. These nutrients are subjected to various metabolic activities in the liver such as glycogen synthesis and urea formation. From the liver hepatic veins carries blood to the inferior vena cava.