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==Overview==
* Steroid hormone
* Secreted from the zona glomerulosa of the adrenal cortex of the adrenal gland
* Mineralocorticoid
* Most important regulator of plasma pottassium
* Stimulated directly by increased plasma pottassium
* Also stimulated as part of the [[Renin-Angiotensin-Aldosterone System (RAAS) - Anatomy & Physiology | Renin-Angiotensin-Aldosterone System (RAAS)]]
==Action==
* Works by altering gene transcription
** Affects ATP levels
===Sodium===
* Affects sodium entry and transport
* Increases sodium re-uptake to a small degree in distal convoluted tubule
===Pottassium and Hydrogen===
* Causes pottassium and hydrogen secretion
** Pottassium via apical leak channels
** Hydrogen by proton secretory proteins