Renal reabsorption of sodium is a part of renal physiology. It uses Na-H antiport, Na-glucose symport, sodium ion channels. It is stimulated by angiotensin II and aldosterone, and inhibited by atrial natriuretic peptide.

How is sodium reabsorbed?

Sodium is reabsorbed in the thick ascending limb of loop of Henle, by Na-K-2Cl symporter and Na-H antiporter.

What is meant by sodium reabsorption?

Reabsorption: Being absorbed again. For example, the kidney selectively reabsorbs substances it has already secreted into the renal tubules, such as glucose, protein, and sodium. These reabsorbed substances are returned to the blood.