Liver
The liver is the central and largest organ of substance formation, metabolism and storage (especially glycogen), as well as the gland for bile production.
In addition to normal blood supply by the liverartery, the liver is also supplied via the portal vein (Vena portae), the entire venous blood from the digestive tract and thus the absorbed carbohydrates, amino acidn and other nutrients are supplied for further metabolism in the body (first-pass effect).
The outflow of all blood from the liver usually takes place via three liver veins into the lower vena cava.