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Questions and Answers
Where does the majority of Na+ reabsorption occur in the renal tubule?
Where does the majority of Na+ reabsorption occur in the renal tubule?
- Distal convoluted tubule
- Thin descending limb of the loop of Henle
- Proximal convoluted tubule (correct)
- Thick ascending limb of loop of Henle
How is Na+ reabsorbed in the early proximal convoluted tubule?
How is Na+ reabsorbed in the early proximal convoluted tubule?
- By countertransport via K+-Na+ exchange
- By facilitated diffusion with urea
- By passive diffusion with Cl-
- By cotransport with glucose, amino acids, phosphate & lactate (correct)
Which segment of the renal tubule reabsorbs 25% of filtered Na+?
Which segment of the renal tubule reabsorbs 25% of filtered Na+?
- Thin descending limb of the loop of Henle
- Distal convoluted tubule
- Thick ascending limb of loop of Henle (correct)
- Proximal convoluted tubule
Where does the least amount of Na+ reabsorption occur in the renal tubule?
Where does the least amount of Na+ reabsorption occur in the renal tubule?
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Which segment of the renal tubule contributes to the reabsorption of 8% of the filtered Na+?
Which segment of the renal tubule contributes to the reabsorption of 8% of the filtered Na+?
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