The
hepatic portal vein is responsible in carrying blood to the liver from the spleen and
the gastrointestinal tract. Another role is that the hepatic vein drains blood
coming from the cystic veins as well as the inferior mesenteric gastric veins. Therefore,
the hepatic vein is an important portal venous system in the human body and to
the circulatory system in general. Meanwhile, the lymphatic system is composed
of lymph nodes and lymph vessels that serve as a transport service of blood to
the external environment.
