Filtration, tubular absorption, and secretion in the urinary system...?
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http://health.howstuffworks.com/kidney1.htm\n\ntry this site.  to the point and easy to understand....
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Well absorbed in GIT.\nMostly metabolised, but 20% excreted unchanged in urine.\nRate of elimination increased by acidification of urine, but usually t1/2 = 6h.\nClearance reduced in CHF and liver disease (reduce dose by 25%).\nTarget plasma conc. is 3-6 micrograms/mL.\nHope that helped.
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The main system of transporting nutrients to the body's cells is through the blood stream. But once a nutrient arrives at a needy cell, it is still inside a blood vessel while the cell lies outside. The lack of nutrients inside the cell, and between the cell and the blood vessel, creates a concentration gradient between the blood vessel and the cell. Due to the lower concentration in the cell, the nutrient diffuses through the blood vessel wall and into the cell.
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REWORD question...not clear....\n\n3 N wastes types in various vertebrates (from breakdown of amino acids and nucleic acids in food) Amine group taken off the amino acid and processed by liver to make urea.\n\nSince this is a zoology class question: N wastes are:\n \nUREA in mammals, us (urea becomes diluted urine plus electrolytes)\nURIC ACID crystals (guano in birds-reptiles)\nAMMONIA gas diffuses out gills in fishes\n\nkidneys filter blood of urea\nureter takes it from kidney to the bladder next\nurine stored in bladder (til urge to urinate-micturate)\nurethral sphincter muscles relax\nurine goes down urethra\nthen out urethral meatus
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Glomerular filtration rate is the rate at which the glomerulus (a microscopic part of your kidney) is able to filter your blood.  It is generally calculated using the Cockroft-Gault formula based on your creatinine level (a product of muscle breakdown that is part of routine blood work) and your age and weight.
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normally kidney function
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1.heart\nMain component of the circulatory system. It pumps blood to spread oxygen and nutrients to all over the body and to get some of the waste.\n2.Lungs\nTo take oxygen and put it in the blood.\n3Liver\nCleans toxins out of your body.\n4Kidneys\nThis one is my weakest answer - I know it helps filter your urine in some way.\n5.Stomach and intestines\nAbsorb nutrients from food.\n6.Mucles\nTo move.\n7.brain\nTo control the body.\n8.Bladder\nSo you don't piss yourself.
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Wow, asking other people to do your homework is pretty bold. On the other hand if you're offering God's blessing...\nHere's something to get started with:\n1) answered by question #2\n3)think about how osmosis works\n5)Diabetes/Diabetic ketoacidosis (DKA) hopefull this will inform answers to the other questions\n8) What does polyuria mean? What is urine made out of? Where does it come from? \n11) If you are hypovolemic (dehydrated), what do you need? Furthermore, if the reason you are hypovolemic is beacuse your cells can't take up glucose, and therefore your blood sugar is high, and therefore you're peeing out all your water, what do you need to fix?
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The kidneys serve two major functions: they keep the salt content of the blood constant, and they filter waste out of the bloodstream. So, the main components of urine are (salt) water and waste products. The major waste product from cells in the body is ammonia, and the major waste product from blood is a broken form of heme called bilirubin. In the liver, each of these is converted into a less hazardous form: ammonia is converted to urea, and bilirubin is degraded to urobilins. Salt, water, and urea are all colorless, but urobilins (which come from degraded pigments) are yellow. So, if you drink a lot, your urine will be more dilute and clearer, and if you get dehydrated, your urine will contain less water and be darker yellow.
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urine contains urea, which is a nitrous acid that is digested out of the bloodstream. when the urea mixes with the toilet water, it foams.
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well,ureteric is anything that related to the URETER e.g ureteric orifice,here is some information:\n*the ureters are the ducts that carry urine from the kidneys to the urinary bladder,the ureters are muscular tubes that can propel urine along by the motions of peristalsis,in the adult,the ureters are usually 25 to 35cm long,in humans,the ureters enter the bladder posteriorly, running within the wall of the bladder for a few centimetres,there are no valves in the ureters,backflow being prevented by pressure from the filling of the bladder,as well as the tone of the muscle in the bladder wall.
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Unless one is diabetic, glucose is not lost during nephronic filtering, thus the glucose levels would be equivalent in arteriole and venous blood.  Urea, on the other hand, is filtered out in the kidney (thus excreting waste nitrogen), therefore urea levels in the renal artery would be much greater than that in the renal vein- This is a classic problem of which substances are preferentially filtered in the kidney.  In a person with uncontrolled diabetes there is hyperglycemia, in which the blood glucose levels are much greater then normal-in this case, glucose is filtered out in the kidneys- prior to modern times, physicians used to determine diabetes by tasting the urine of patients to determine if there was sugar in it...
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Dialysis tubing is tubing with a semi-permeable exterior, thus allowing the osmosis of small molecules, such as water, through its wall, while preventing larger molecules such as starch and proteins from passing through. It is used as a filter for dialysis.\nTypically a solution of several types of molecules is placed into a semipermeable dialysis bag, such as a cellulose membrane with pores, and the bag is sealed. The sealed dialysis bag is placed in a container of a different solution, or pure water. Molecules small enough to pass through the tubing (often water, salts and other small molecules) tend to move into or out of the dialysis bag, in the direction of decreasing concentration. Larger molecules (often proteins, or polysaccharides) that have dimensions significantly greater than the pore diameter are retained inside the dialysis bag.
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First blood is sent into the kidneys to be processed through the nephrons of the kidney which take out substances that are not wanted in the blood such as excess water, salts, amino acids and uric acid which becomes the urine. Next the urine is sent through the ureters to the bladder where when full a signal is sent to the brain that gives that feeling that you need to go. It then goes through the urethra into the toilet or where ever you might be peeing.
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they functins as human kidneys they help in excreting out the nitrogenous waste materials out of the body
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One of the most common reasons why glucose is found in the urine is related to diabetes.  Diabetics have excess glucose in their blood, and some of it gets through the glomerulus.  Normally, the glomerulus does not filter out glucose (instead, the glucose remains in the blood.  Why would you want to excrete something you need?).  So, in terms of the nephron, it would be a malfunction of the glomerulus that leads to glucose in the urine.  Notice that glucose is not transported across the tubules nor any part of the loop of Henle.  The nephron is not able to recapture that glucose because it wasn't supposed to enter the filtrate in the first place (remember, the glomerulus should not have filtered it out).
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