A.？ The liver is a digestive gland.
B.？ The liver is a parenchymal organ.
C.？ Rich liver blood supply
D.？ The blood supply vessel of the liver is hepatic artery.
E.？ The liver does not produce bile.
Liver, the name of human organs, is one of the five internal organs. It is an organ with metabolic function in the body. The liver also makes bile in the digestive system. Traditional Chinese medicine believes that the liver and gallbladder are exterior and interior, and the eyes are enlightened. The liver controls blood storage, and the gallbladder controls drainage, which has the function of storing and regulating blood. The liver is the largest digestive gland in human body and the center of metabolism in the body. It is estimated that there are more than 500 chemical reactions in the liver. Specifically, the liver is mainly engaged in the following five "jobs".
1. synthesis function. Grains enter the digestive tract, are digested and hydrolyzed into glucose, then transported to the liver, and then absorbed and utilized by the human body. After glucose is transported to the liver, part of it is stored in the liver in the form of glycogen for later use. Amino acids absorbed by digestive tract also undergo protein synthesis, deamination and transamination in liver. The liver is also the main synthesis site of various coagulation factors. There are 12 kinds of coagulation factors in human body, 4 of which are synthesized in liver.
2. Decomposition function. The liver is the main detoxification organ of the human body, which can protect the body from harm. After liver treatment, some metabolic wastes or spoilage products of intestinal bacteria in the body, as well as drugs taken, and toxic substances become non-toxic, low-toxic or soluble substances and are excreted. This process is called detoxification.
3. Filtering function. Hormones are synthesized in endocrine organs and slightly regulate various functions of human body. Most hormones undergo chemical changes in the liver and are excreted. For example, thyroid hormone, estrogen, aldosterone and antidiuretic hormone are all metabolized in the liver. So when?
4. Storage function. The liver can store fat-soluble vitamins, and 95% of vitamin A in human body is stored in the liver. The liver is also the storage and metabolism place of vitamins C, D, E, K, B 1, B6, etc. Iron is an important component of hemoglobin, and the liver stores more iron than all the blood in the body.
5. Produce bile. Bile is digestive juice, which helps to absorb lipids and fat-soluble vitamins. The liver produces bile, which is then transported to the gallbladder and stored, concentrated in the gallbladder and discharged into the duodenum.