<P> Aldosterone , the main mineralocorticoid hormone , is a steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland . It is essential for sodium conservation in the kidney , salivary glands , sweat glands and colon . It plays a central role in the homeostatic regulation of blood pressure , plasma sodium ( Na ) , and potassium ( K ) levels . It does so mainly by acting on the mineralocorticoid receptors in the distal tubules and collecting ducts of the nephron . It influences the reabsorption of sodium and excretion of potassium ( from and into the tubular fluids , respectively ) of the kidney , thereby indirectly influencing water retention or loss , blood pressure and blood volume . When dysregulated , aldosterone is pathogenic and contributes to the development and progression of cardiovascular and renal disease . Aldosterone has exactly the opposite function of the atrial natriuretic hormone secreted by the heart . </P>
<P> Aldosterone , the main mineralocorticoid hormone , is a steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland . It is essential for sodium conservation in the kidney , salivary glands , sweat glands and colon . It plays a central role in the homeostatic regulation of blood pressure , plasma sodium ( Na ) , and potassium ( K ) levels . It does so mainly by acting on the mineralocorticoid receptors in the distal tubules and collecting ducts of the nephron . It influences the reabsorption of sodium and excretion of potassium ( from and into the tubular fluids , respectively ) of the kidney , thereby indirectly influencing water retention or loss , blood pressure and blood volume . When dysregulated , aldosterone is pathogenic and contributes to the development and progression of cardiovascular and renal disease . Aldosterone has exactly the opposite function of the atrial natriuretic hormone secreted by the heart . </P>
what part of the kidney does aldosterone work on
what part of the kidney does aldosterone work on
nephron
nephron