Which of the following is responsible for the production of concentrated urine
A
PCT
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B
DCT
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C
Collecting duct
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D
Henle's loop
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Solution
The correct option is D Henle's loop The correct answer is Option D
The loop of Henley is responsible for concentrating urine, The greater the length of loop of henley the more will be the concentration of urine. The urine will be four times(1200mOsml) more concentrated than the normal body fluids (300mOsml).
Loop of Henley has two limbs
1.Ascending limb- Reabsorption is minimum and plays a important role in the maintenance of high osmolarity of medullary interstitial fluid.
2.Descending limb of loop of Henle is permeable to water but impermeable to electrolytes, so water is reabsorbed passively here.