micropuncture studies performed at the late accessible proximal and early accessible distal sites of the same superficial nephrons indicate that the reabsorptive capacity for phosphate ( absolute reabsorption/absolute delivered phosphate per nephron segment ) is decreased during sodium bicarbonate infusion in the convoluted proximal tubule as well as in the loop ( segment located between late proximal and early distal accessible convolutions ) and the terminal nephron .
C1707510
convoluted
C0027713
nephron