In human anatomy, the<unk>  is the system of veins that comprises the hepatic<unk>  vein and its tributaries. It is also called the<unk>  venous system, although it is not the only example of a<unk>  venous system.
Hepatic portal system
Hepatic vein
Hepatic circulation
Lymphatic system
Common bile duct
Bile duct
Lymph vascular system
Splenic vein