<unk>  reabsorption of<unk>  (Na+) is a part of<unk>  physiology. It uses Na-H antiport, Na-glucose symport,<unk>  ion channels (minor). It is stimulated by angiotensin II and aldosterone, and inhibited by atrial natriuretic peptide. It is very efficient, since more than 25,000 mmoles/day of<unk>  is filtered into the nephron, but only ~100 mmoles/day, or less than 0.4% remains in the final urine.
Renal sodium reabsorption
Renal glucose reabsorption
Renal chloride reabsorption
Renal protein reabsorption
Renal urea handling
Renal oligopeptide reabsorption
Renal blood flow
Tubuloglomerular feedback