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Adrenal Cortex

The outer layer of the Adrenal Gland. It is derived from Mesoderm and comprised of three zones (outer Zona Glomerulosa, middle Zona Fasciculata, and inner Zona Reticularis) with each producing various Steroids preferentially, such as Aldosterone; Hydrocortisone; Dehydroepiandrosterone; and Androstenedione. Adrenal cortex function is regulated by pituitary Adrenocorticotropin.