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  • Collecting duct allows passage of small amounts of ______ into the medullary interstitium to keep up the osmolarity. Choose the correct option to fill in the blank<stron

Collecting duct allows passage of small amounts of ______ into the medullary interstitium to keep up the osmolarity. Choose the correct option to fill in the blank

Option: 1

Uric acid


Option: 2

Urea


Option: 3

Bicarbonate ions


Option: 4

Chlorine


Answers (1)

best_answer

 

 

Revision Concept: Functions of Renal Tubules -

 

Collecting Duct: 

  • This long duct extends from the cortex of the kidney to the inner parts of the medulla.
  • Large amounts of water could be reabsorbed from this region to produce concentrated urine. 
  • This segment allows passage of small amounts of urea into the medullary interstitium to keep up the osmolarity. 
  • It also plays a role in the maintenance of pH and ionic balance of blood by the selective secretion of H+ and K+ ions.
     

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Collecting duct allows passage of small amounts of urea into the medullary interstitium to keep up the osmolarity. Hence the correct option is urea

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