Which of the following collecting duct transporters is required to concentrate urine? A) Aquaporin channels B) H+ ATPase C) K+ channels D) Na+ channels E) Na+ - K+ -  2CI - symporter

Phlebotomy Essentials
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Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
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Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
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2. Which of the following collecting duct transporters is required to concentrate urine?
A) Aquaporin channels
B) H+ ATPase
C) K+ channels
D) Na+ channels
E) Na+ - K+ -  2CI - symporter

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Step 1

The last component of the nephron, the collecting duct system, assists in fluid and electrolyte balance through secretion, excretion and re-absorption , activities that are controlled by the hormones vasopressin (also known as anti diuretic hormone) and aldosterone.


Six nephrons on average drain into a collecting duct. Through the cortex and medulla, collecting ducts descend before successively fusing close to the inner medullary area.

 

 

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