Adrenal Cortex
| Definition: |
The outer layer of the adrenal gland. It secretes mineralocorticoids, androgens, and glucocorticoids. |
| Notes: |
PITUITARY-ADRENAL SYSTEM is available; also available are the 3 zonae of the cortex: ZONA GLOMERULOSA (outer), ZONA FASCICULATA (middle) & ZONA RETICULARIS (inner) |
| Also Called: |
Adrenal Cortex Effects |
| Previously Indexed: |
Adrenal Glands (1966-1974) |
Adrenal Cortex Categories.
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Zona Fasciculata - 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. |
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Zona Glomerulosa - The narrow subcapsular outer zone of the adrenal cortex. This zone consists of granular cells which stain deeply and are arranged in rounded groups. It converts pregnenolone to aldosterone by a series of enzymatically regulated steps. |
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Zona Reticularis - The inner zone of the adrenal cortex. This zone consists of an anastomosing network of cells which resemble those of the zona fasciculata except for the fact that they contain less lipid. The mitochondria are elongated and contain a mixture of tubular and flattened cristae. |
Adrenal Cortex Definitions and Terms
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