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...