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| Zona Fasciculata Adrenal Fasciculata | Fasciculata, Adrenal | Fasciculata, Zona The wide middle zone of the adrenal cortex. This zone consists of large lipid-laden cells radially arranged in parallel cords. It converts pregnenolone to cortisol by a series of enzymatically regulated steps. A small amount of corticosterone is formed as a by-product of cortisol synthesis. |