Liver in human life in a very important role. In digestion, absorption, excretion, biotransformation, and the metabolism of various substances are playing an important role as "Metabolism hub."
         Liver with hepatic artery and portal vein dual blood supply is abundant sinusoids, liver cell membrane permeability, and to exchange material. From the gastrointestinal absorption of nutrients into the liver via the portal vein of the use of harmful substances out to be transformed and detoxification. The liver can be obtained through the hepatic artery to ensure adequate oxygen intrahepatic various biochemical reactions normal. Through the liver and biliary system intestinal communication, liver bile secretion into the intestinal excretion.
        Liver cell subsets micro-structure in line with its physiological function. Liver cells in a large number of mitochondria, endoplasmic reticulum, microsomes and lysosomes, to the liver active biological oxidation, protein synthesis, biological transformation of a variety of functions.
The chemical composition of the liver
      Normal liver weighs about 1-1.5kg, which accounted for 70% moisture. In addition to water, the highest protein content. The liver enzyme known within a few hundred or more, and some of the other organizations in which there is no or little content. For example, and urea synthesis vitro enzyme; Catalytic aromatic amino acids and sulfur amino acid metabolism enzymes mainly in the liver.
      Normal liver chemical composition table 11-1. Constituents often with liver disease and nutrition situation changes. For example, over the future of hunger, liver glycogen and protein content decreased triglyceride and phospholipid content increased. Increased liver lipid content, water content decreased. As with fatty liver, moisture can be reduced to 50% -5%. ª¤
Table 11-1 normal liver chemical composition (percentage of the fresh weight basis)
Percentage of Percentage of
Water Na 0.190 70
Protein 0.215 * 15 K
Cl quality sugar 5-10 .016
Glucose 0.1 Ca 0.012
Triglyceride 0.022 Mg 2
Phospholipid 2.5 Fe 0.010
Cholesterol 0.3 Zn 0.006
                            Cu 0.002
* 86.6% of globulin, albumin 6.6% for ª¤
In addition, the iron content of the liver more of this is the largest iron storage organ.