Which of the Following Would Help Maintain the Medullary Concentration

question 126

Multiple Choice

Which of the following would help maintain the medullary concentration gradient?

• A)movement of urea from the distal convoluted tubule to the proximal convoluted tubule
• B)urea movement from the collecting duct to medullary interstitial fluid
• C)movement of water from the ascending limb into the medullary interstitial fluid
• D)active transport of sodium and chloride from the medullary interstitial fluid into the collecting duct
• E)urea movement into the collecting duct

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