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肝脏是人体重要器官之一,对糖、脂类、蛋白质、维生素、激素等代谢,均有重要作用。同时,肝脏还具有分泌、排泄、生物转化等功能。肝脏之所以有多方面的功能,和它的组织结构以及化学组成的特点有着密切关系。肝细胞中含有极其丰富的酶类,其中有些酶为肝脏所独有,有的酶在肝脏活性最大。由于肝脏的组织结构及化学组成的特点,肝内各种物质代谢极为活跃,所以它在体内各类物质的合成与分解、转化与运输、贮存与释放、分泌与排泄中均起重要作用。
The liver is one of the important organs of the human body and plays an important role in the metabolism of sugar, lipid, protein, vitamins and hormones. At the same time, the liver also has secretion, excretion, biological transformation and other functions. The reason why the liver has many functions, and its organizational structure and the characteristics of chemical composition are closely related. Liver cells contain extremely rich enzymes, some of which are unique to the liver, some of which are most active in the liver. Due to the liver tissue structure and chemical composition characteristics, the metabolism of various substances in the liver is very active, so it plays an important role in the synthesis and decomposition of various substances in the body, transformation and transport, storage and release, secretion and excretion.