Adrenal Hormones Regulating Fluid & Electrolyte Balance: Aldosterone & Cortisol

The hormones in the adrenal gland that function to control water and electrolyte balance are aldosterone and cortisol.

- Aldosterone: This hormone is produced by the zona glomerulosa of the adrenal cortex. It acts primarily on the kidneys to regulate the balance of sodium and potassium in the body. Aldosterone promotes the reabsorption of sodium and the secretion of potassium in the collecting ducts of the kidneys, helping to maintain blood pressure and fluid volume.

- Cortisol: Cortisol is produced by the zona fasciculata of the adrenal cortex. While it has diverse effects on the body, cortisol also plays a role in water and electrolyte balance. It regulates sodium and potassium transport in the kidneys, but its effects are more generalized compared to aldosterone. Cortisol helps maintain fluid balance, electrolyte homeostasis, and blood pressure as part of the body's response to stress.