describe how the kidney is adapted to filter the blood

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help, in detail please =)

Posted Wed 4th April, 2012 @ 15:01 by Sabah x

4 Answers

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Kidney has many ways in which it is adapted to filtering the blood. First of all it has a glomerulus which forms a lardge circular shape at the end and the bowmans capsule fits onto that. This round ball contains many cappillarires which are diffusing across the membrane to be filtered. This increases surface area as the cappilaries are all circular and curved much like  the structure of a small intestine therefore allowing maximum  diffusion into the kidney. In the glomerulus ultrafiltration takes place where large siubastances like proteins and cells are filtered and thereofre cannot pass through the membrane because they are too big, therfore the only a liquid full of small amino acids, ions etc pass trough into the bowmans capsule. The liquid then gets filtered once more and this i where the waste products like urea are left in the kidney and where the beneficial molecules like ions, glucose, water etc are reabsorbed (reabsorption) and the waste products pass down the the ureter in to the bladder to be excreted. Now like I said, the glomerulus + bowmans capsule is part of 1 structure called a nephron. In the kidney there are about 1 million nephrones in a kidney and a person has 2 kidneys therefore imagine the rate at which this goes at....reallly fast! Anyway hope i helped and below is a image to show u what i mean!!

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Answered Sun 8th April, 2012 @ 11:19 by Braniac
Edited by Braniac on Sun 8th April, 2012 @ 11:20
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thnx..***

bt i cn't see da image

Answered Thu 12th April, 2012 @ 16:39 by Sabah x
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really oh woops ill find the link and put it up. its only a brief description **

the link is below if you want to have a look !

http://www.google.co.uk/imgres?q=ultrafiltration+kidney&hl=en&sa=X&gbv=2&biw=1280&bih=706&tbm=isch&tbnid=s8DMsuFsdpHpjM:&imgrefurl=http://en.wikipedia.org/wiki/Ultrafiltration_%28renal%29&docid=ANCao7Y9i-emqM&imgurl=http://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/Physiology_of_Nephron.png/300px-Physiology_of_Nephron.png&w=300&h=350&ei=kfGHT9KvEqac0AXTkrDgCQ&zoom=1&iact=hc&vpx=828&vpy=138&dur=403&hovh=243&hovw=208&tx=110&ty=132&sig=109775945495557263566&page=1&tbnh=160&tbnw=137&start=0&ndsp=15&ved=1t:429,r:3,s:0,i:71

lol quite a long one right anyway glad i culd help

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Answered Fri 13th April, 2012 @ 10:28 by Braniac
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yeah thnx :)

Answered Fri 13th April, 2012 @ 14:05 by Sabah x