The liver receives its oxygen from a small<unk>  artery that branches off the coelic artery, but most of the blood flowing through the liver comes from the gut. All the blood delivered by the coeliac artery, the anterior mesenteric artery and the posterior mesenteric artery is collected into the large<unk>  portal, which runs parallel to the common bile duct. Usually, the<unk>  portal does not get injected with latex, so it can be difficult to see.
After it enters the liver, the<unk>  portal distributes blood to a vast network of sinuses in the liver, where it can be screened and its solutes adjusted. These sinuses are then drained by small veins which merge to form the<unk>  vein. The<unk>  vein, shown in the photo, was buried right in the tissue of the liver, and had to be dissected out. The<unk>  vein then takes blood to the posterior vena cava.
Hepatic circulation
Systemic circulation
Lymph vascular system
Coronary circulation
Lymphatic system
Pulmonary circulation
Cerebral circulation
Circulatory system