Glomerulosa cells

Glomerulosa cells are steroid-producing endocrine cells that form the outermost zona glomerulosa of the adrenal cortex. They are uniquely capable of producing the mineralocorticoid aldosterone, regulated primarily by the renin-angiotensin-aldosterone system (RAAS) and potassium levels. Aldosterone acts on the kidneys to promote sodium retention and potassium excretion, regulating blood pressure and electrolyte balance.