Wednesday, October 24, 2012

Watch _ of internal structure of the hepatocyte to test check

Watch _ of internal structure of the hepatocyte to test, check
Surface of each hepatocyte can be divided into a sinus the crack, with in charge of three kinds of surfaces timidlying the hepatocyte. Contain a lot of complicated slight structure inside the hepatocyte: For instance body, microsome of nucleus of liver, liver cytoplasm, mitochondria, inner quality network, lysosome, Gorgy and drinking the vacuole,etc. make up. The liver is made up of hepatocyte, and there are abundant blood vessel networks, reddish brown, the quality is soft and fragile, apt to be attacked and broken and caused massive haemorrhage of mortality by the violence. Hepatocyte minima, the naked eye can not be seen, could be seen through the microscope. People's liver nearly has 2,500 million hepatocytes, 5 0 quiet hepatocytes make up the small leaf of a piece of liver, so nearly there are 500,000 total number of small leaf of liver of people's liver. Hepatocyte about in polygon, diameter 20-30 /add (micron) ,There are 6-8 surfaces, volume about 4g0 ware 3, the size has differences under different physiological conditions, the hepatocyte volume becomes large when such as being hungry.
Surface of each hepatocyte can be divided into a sinus the crack, with in charge of three kinds of surfaces timidlying the hepatocyte. Contain a lot of complicated slight structure inside the hepatocyte: For instance body, microsome of nucleus of liver, liver cytoplasm, mitochondria, inner quality network, lysosome, Gorgy and drinking the vacuole,etc. make up. Every kind of slight structure has extremely important and complicated functions, the existence of the life of guarantor of these functions, the guarantor can live on.
1.Nucleus of liver
The nucleus of liver is mainly gone ribonucleic acid of oxygen (DNA) Make up with histone,etc.. Go oxygen ribonucleic acid hereditary material base, it have function to duplicate the hereditary information. While suffering from hepatitis, the hepatitis virus invades in the nucleus of liver, the virus gene can be combined with ribonucleic acid of oxygen to the nucleus of liver (combine) . Once combine, HBsAg is difficult to remove promptly, cause HBsAg to carry for a long time. In addition go the intersection of oxygen and ribonucleic acid might regard oneself as template formate the messenger ribonucleic acid (mRNA) also ,Thus control the formation of various corresponding proteins in cytoplasm. Obviously damage if the nucleus of liver, mean the whole hepatocyte is disintegrated, destroyed.
2.Mitochondria
Each hepatocyte has 1000-2000 pieces of mitochondria, are mostly round or pole -shaped pairs of membrane structure, it is in length 1.0- 5. Oran,among them store have. ? More than 0 types of enzyme and coenzymes, such as GPT (SGIT or ALT, hereafter referred to as transaminase) The intersection of cellular respiration and enzyme, ATP,etc.. Human body take a photograph of candy, protein, the intersection of fat and three major metabolism of nutrient of people go on in mitochondria, and can produce a large amount of energy essential for human body, is known as powering " power station " . As hunger and tetrachloromethane poison and when the intersection of whole body and oxygen deficiency, hepatitis or bile silt accumulate, mitochondria is a initially, most sensitive victim, can extremely swell the biochemical function of causing transaminase to raise etc. is disorderly.
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