The nephron is the functional unit of the kidney. If it works properly then water, salts, and urea will filter into the bowman's capsule via the glomerulus. It will then pass through the loop of henle where various amounts will be pumped in and out... mostly water and salt will come back out at first, so that the water stays in the blood. The hormone Aldosterone is responsible for this pumping of salts out of the loop of henle and where the salt goes the water follows. Then more water will be reabsorbed in the collecting duct (the last sort of tube before the ureter) and ADH (anti-diuretic hormone) is responsible for the collection of water here... this is so that our blood plasma level does not drop and blood pressure drop significantly when we urinate. We try to retain water and urinate out mostly urea and excess salts. If there is excess water, we will urinate that out as well.
An unhealthy kidney might let glucose, amino acids, or even red blood cells pass through the glomerulus (which is supposed to keep these larger particles from entering the kidney). If that is the case, like with diabetes, there will be glucose in the urine. Similarly, if blood passes you will see blood in the urine. These are signs on disease.
2006-08-06 03:10:17
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answer #1
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answered by Stephanie S 6
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2016-09-16 01:26:08
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answer #2
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answered by ? 3
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2016-09-24 01:12:54
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answer #3
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answered by ? 3
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2016-12-24 22:43:23
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answer #4
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answered by Anonymous
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hi Kidney is the most important part of our excretory system .
There are 2 kidneys in our body. They are bean shaped,4-5 cm long and placed in our abdomen on the either side of our backbone.They are red coloured. The renal artery enters kidney carring 'dirty' blood or 'blood carrying the wastes' .The kidney removes the wastes from the blood .It filters the blood.The wastes are moved out of body through urine.
2006-08-06 02:11:15
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answer #5
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answered by Anonymous
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2017-02-24 06:08:33
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answer #6
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answered by ? 3
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It filters our blood. We need not have a pair to function and only one kidney is good enough to take care of all the work. This is the reason why we can donate it to people who are in need. You need a lots of water to keep them working efficiently.
2006-08-06 02:05:10
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answer #7
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answered by Abhijit 5
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Kidneys are are one of the scavenger organs of the body which help to flush out the impurities produced in the body during activity-.by doing so they help the body to function near normalcy-when diseased they give rise to blood pressure rise, diabetes,albuminuria and sometimes nearly fatal diseases--so to make them function normally you may have to drink plenty of fluids and so on and so forth
2006-08-06 02:15:53
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answer #8
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answered by Sankara Sastri C 1
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Try this one:
http://health.howstuffworks.com/kidney.htm
U'll find everything u wanna know abt kidneys there.
2006-08-06 02:09:20
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answer #9
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answered by adlex 2
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It's nice with steak, in a pie.
2006-08-06 02:02:55
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answer #10
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answered by Sherlock 6
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