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InterviewSolution
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Question : Answer question numbers (a) - (d) on the basis ofyour understading of the following paragraph and the related studied concepts :The excretory system of human beings includes a pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Kidneysare located in the abdomen, one on either side of the backbone. Urine produced in thekidneys passesthrough the ureters intothe ureters into urinary bladder where it is stored until it is released through the urethra.(a)Between Renal artery and Vera cava (Renal Vein) whichone carriers more impurities ?(b)How'sthe expulsion of urine regulated ?(c)Howfrequently is urine produced and sent into the urinary bladder ?(d)How is urine production is human body differentfrom dialysis, though both the procedurers are helping in removal of impurities from the body ? |
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Answer» Solution :(a) Renal artery carriers more impurities which get filtered out in each kidney through beings NEPHRONS. (b) The urinary bladder stores urineuntil the feeling. of being FULL, then it expels it out by OPENING of the sphincter. It is under neural regulation. (c)The urineis formed continuously as the blood is continuously being purified in the kidenys and hence is beingsent to the bladder continuously. Inside our body, the molecules are filtered outbased on their solubility and size. Hence, much water is also filtered . HOWEVER, most nutrients and 90% of water is reabsorbed back into the blood so that only the impurities and wastes, dissolved in water are exerted out from the body. However in dialysisit is only the impurities and wastes that are REMOVED into the dialysing fluid . There is no reabsorption. |
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