Cardiovascular System of the Lower Torso

The cardiovascular system of the lower abdomen and pelvis is made up of the liver and a large number of blood vessels which come from networks in the stomach, intestines, pancreas and spleen. The veins of the lower abdomen's cardiovascular system carry blood from these organs through a portal vein to the liver. There, the blood enters capillary like hepatic sinusoids; all together, these are called the hepatic portal system. After passing through the portal veins of the liver, the blood is carried...

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Full Cardiovascular System of the Lower Torso Description

[Continued from above] . . . through a series of merging vessels into the hepatic veins. These empty into the inferior vena cava and return the blood into circulation. The corresponding arteries of the same names are taking oxygenated blood to these sites in paths parallel to those of the veins.