The greatest percentage of Na⁺ reabsorption takes place in the A) proximal tubule B) loop of Henle C) distal tubule D) collecting tubule E) renal pelvis

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The greatest percentage of Na⁺ reabsorption takes place in the proximal tubule of the nephron. This is due to the fact that the proximal tubule has the highest level of cell surface area and contains a variety of transporters that are responsible for the reabsorption of Na+, Cl-, K+, HCO3-, glucose, amino acids, and other substances. Additionally, the proximal tubule is the site of renal glucose absorption, which is dependent on the activity of the Na+-glucose cotransporter (SGLT2) and glucose transporter (GLUT2). Overall, the proximal tubule reabsorbs approximately 65% of the Na⁺ filtered in the glomerulus.

The Greatest Percentage of Na+ Reabsorption Takes Place in the

The Greatest Percentage of Na⁺ Reabsorption Takes Place in the