100% of the blood from digestion passes through the liver before returning to the heart.
The hepatic portal system is the venous system that returns blood from the digestive tract and spleen to the liver. The raw nutrients in the blood are processed in the liver before the blood returns to the heart.
The hepatic portal vein supplies 75% of the blood to the liver, while the hepatic arteries supply the remaining 25%.
In the liver, carbohydrates and amino acids can be stored or used to synthesize new proteins and carbohydrates.
The liver also extracts vitamins and cofactors from the blood for storage, as well as filters any toxins that may have been absorbed along with the food.
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