I learned recently many interesting facts about the human body- one of them is that the liver is made up of one specific type of cell. But what is that kind of cell? Also, please do share any other interesting facts. :)
132478
well,liver is made up of specific type of cell called HEPATCYTE.here is a brief assay on liver:\n*the liver is an organ in vertebrates,including humans,it plays a major role in metabolism and has a number of functions in the body including drug detoxification, glycogen storage,and plasma protein synthesis,it also produces bile,which is important for digestion,also it has a special feature that it can regenerate the removed part of it that makes the liver to regain the same shape.
70066
Ok  each cell has its own wall, think of it like a water balloon.  now take a whole bunch of these water balloons and stack them together,  say thats you skin holding all your blood in, ahh but your blood is made up of cells as well.  now when there is a break in the skin blood pours out, why not water? because the water is still contained within each individual cell.  The cells themselves are not broken only pushed apart by whatever is poking you.  that make sense?
86238
I know that bone marrow is responsible for creating red blood cells.\n\nHere's something more specific:\n\nsoft tissue filling the spongy interiors of animal bones. Red marrow is the principal organ that forms blood cells in mammals, including humans (see blood). In children, the bones contain only red marrow. As the skeleton matures, fat-storing yellow marrow displaces red marrow in the shafts of the long bones of the limbs. In adults red marrow remains chiefly in the ribs, the vertebrae, the pelvic bones, and the skull. Erythrocytes (red blood cells), platelets, and all but one kind of leukocyte (white blood cell) are manufactured in human red marrow. The marrow releases about 10 million to 15 million new erythrocytes every second, while an equivalent number are destroyed by the spleen.
653113
Hepatitis is a fancy way of saying inflammation of the liver.  There are many different reasons that can cause hepatitis.  Virus, massive blood infections, medications, alcohol, auto-immune disorders are some general causes of hepatitis. \n\nHepatitis C virus and alcohol both can cause inflammation of the liver.  Hepatitis C can be easily tested by blood work and if you have abnormal liver function test and Hepatitis C, it could be causing the hepatitis.  If you test negative for Hepatitis C and you drink alot of alcohol, then the alcohol may be causing it.  Now if you drink heavily/frequently and also have Hepatitis C it may be hard to figure which one is doing more damage.  In the last case senerio,  the important thing to rememeber is that both the alcohol and hepatitis C could be causing liver inflammation and ultimately you could develop liver cirrhosis (liver is so damaged and scarred from chronic inflammation) faster than if you have only had one causative factor.\n\nUnlike what people above said, alcohol does cause hepatitis and it is common.  Chronic hepatitis can ultimately lead to liver cirrhosis.
670634
They have recently discovered that nerve tissue actually can divide and regenerate, but at a veeeery slow rate. The reason can be explained in terms of the cell cycle. Nerve cells are in a phase known as G0 this is known as a resting phase. Nerve cells were thought of as permanent tissues. The other types of tissues that you get are stable and labile. Muscle is another tissue that is permanent. Liver tissue is very interesting. it is usually permanet but when massive damage to the liver occurs, the cells can get out of g0 and undergo mitosis to repair the tissue!Hair cells and skin are types that are rapidly dividing and can regenrate the easiest!
262048
id say the plants and animals are multi-celled and the others are single-celled. also cell specilization could be a difference.
131931
Depending on how picky you want to be, the answer could be A or C.  By definition an organ is always composed of two or more tissue types.  Many organs contain all four major tissue types:  epithelial, connective, muscle, and nervous.  So A is certainly correct.  Since organ systems by definition are composed of two or more organs, they must also be composed of more than one tissue type.\n\nB is not correct because an organelle is a constituent of a single cell, which lies beneath tissues and organs in the hierarchy of organizational levels in complex multicellular organisms.  D could be correct if the organism in question is complex enough to have organs and organ systems.  On the other hand, simple forms of life such as bacteria and protists are also organisms, but being single-celled they obviously have not reached the level of organization at which tissues and organs are found.
153921
im studying the digestive system right now, so i'll have a go at this question (u may want to chec accuracy).\nthe cell gets the carbon it needs via the blood supply. when we eat, all the nutrients are broken down and molecules such as hydrogen, oxygen and carbon are filtered into the blood stream so that they can be passed on to all the cells in th body.\n\ndoes that help?
415850
It plays a major role in metabolism and has a number of functions in the body including glycogen storage, plasma protein synthesis, and drug detoxification. \n\nThe various functions of the liver are carried out by the liver cells or hepatocytes.\n\nThe liver produces and excretes bile required for dissolving fats. Some of the bile drains directly into the duodenum, and some is stored in the gallbladder. \nThe liver performs several roles in carbohydrate metabolism: \nGluconeogenesis (the formation of glucose from certain amino acids, lactate or glycerol) \nGlycogenolysis (the formation of glucose from glycogen) (muscle tissues can also do this) \nGlycogenesis (the formation of glycogen from glucose) \nThe breakdown of insulin and other hormones \nThe liver is responsible for the mainstay of protein metabolism. \nThe liver also performs several roles in lipid metabolism: \nCholesterol synthesis \nThe production of triglycerides (fats). \nThe liver produces coagulation factors I (fibrinogen), II (prothrombin), V, VII, IX, X and XI, as well as protein C, protein S and antithrombin. \nThe liver breaks down hemoglobin, creating metabolites that are added to bile as pigment. \nThe liver breaks down toxic substances and most medicinal products in a process called drug metabolism. This sometimes results in toxication, when the metabolite is more toxic than its precursor. \nThe liver converts ammonia to urea. \nThe liver stores a multitude of substances, including glucose in the form of glycogen, vitamin B12, iron, and copper. \nIn the first trimester fetus, the liver is the main site of red blood cell production. By the 32nd week of gestation, the bone marrow has almost completely taken over that task. \nThe liver is responsible for immunological effects- the reticuloendothelial system of the liver contains many immunologically active cells, acting as a 'sieve' for antigens carried to it via the portal system. \n\nHope this helps you...\nYou can also check this link if you want to know more:\nhttp://janis7hepc.com/Your%20Liver%20Functions.htm
74629
evrything passes thru the liver, the air we breath, the food we eat, the chemicals absorbed thru our skin ALL PASS THRU THE LIVER FOR PURIFICATION
320026
Without the liver there is no life! Your liver produces many substances and maintains the balance of many nutrients. Our body makes many waste products which can be excreted only by the liver. \n\nThe liver plays a central role in the detoxification of drugs. Drugs are being taken up by the liver, degraded and excreted. The liver acts as a filter and prevents the passage of bacteria from the gut into the blood. The liver is also an important player in our defense mechanisms. \n\nSince the liver can be affected by many things other than alcohol, it is totally conceivable that you can have problems with your liver.  Heredity, drugs, viruses, stds, etc. can all damage the liver.\n\nThis little poem says it all and was written by Pablo Neruda:\n\nOde to the Liver\n\nThere, inside, you filter and apportion \nyou separate and divide, \nyou multiply and lubricate \nyou raise and gather \nthe threads and the grams of life... \nfrom you I hope for justice: \nI love life: Do not betray me! Work on! \nDo not arrest my song.
204825
Liver:The liver is the largest internal organ in the human body\nFunction:It plays a major role in metabolism and has a number of functions in the body including glycogen storage, plasma protein synthesis, and drug detoxification.\nIt also produces bile,\nGall bladder:A part of Digestive system\n\nSpleen:Lymphatic system\nFunction:The spleen is a ductless, vertebrate gland that is not necessary for life but is closely associated with the circulatory system, where it functions in the destruction of old red blood cells.\n\nPancreas:A part of Digestive system and Endocrine system.\n\nPericardium:The pericardium is a double-walled sac that contains the heart \n\nCardiac valve:circulatory system\n\npyloric valve:Digestive system\nAt the end of pyloric stomach is presnt a strong circular muscle band,called pyloric valve
99116
The only thing I can help you with on this subject, is that as long as there is part of the liver still functioning, it is possible for it to totally renew itself.  It is the only organ of the body able to do so.
12540
If you would like to learn about cells, then you will love this site for the rest of your life:\n\nhttp://www.cellsalive.com/
543518
All the answers are here --> http://en.wikipedia.org/wiki/Cell_%28biology%29\n(and in your book)
39294
>>>>When does a Erythrocyte (red blood cell) ever have a\n>>>> nucleus\n\nImmature mammalian RBCs have anucleus. The RBCs of most non-mammalian vertebrates retain their nuclei.\n\n>>>>>and why is it usually an anucleate?\n\nIncreased surface areas relative to volume. That allows a larger surface for the diffusion of gases.
16016
I know of two kinds of cells that are not regenerated: Brain cells (neurons) and if you are female, eggs cells in the ovary.  The ones you are born with are still with you.