JOHN DAUGHERTY / SCIENCE PHOTO LIBRARY JOHN DAUGHERTY / SCIENCE PHOTO LIBRARY
Liver anatomy. Cutaway diagram of the anatomy of the liver. It is organised into roughly hexagonal structures called lobules. It has many functions including nutrient storage, metabolic regulation, and removing wastes. Within the lobules are seen: branches of the hepatic artery (red), which provide oxygenated blood; hepatic ductules (green) carrying secreted bile to the gall bladder via the bile duct; branches of the hepatic portal vein (pink), which carry blood containing nutrients and toxins from the digestive system; and central veins (blue), which drain into the hepatic vein which takes blood from the liver back into general circulation.
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