Where does the majority of sodium reabsorption take place?
a. Proximal tubule
b. Loop of Henle
c. Distal tubule
d. Collecting duct
ANS: A
The majority of sodium reabsorption takes place in the proximal tubule. The majority of sodium reabsorption is not associated with the loop of Henle, the distal tubule, or the collecting duct.
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