Question

Name the layers of adrenal cortex and mention their secretions.

Answer 1

The adrenal cortex has three layers namely Zona glomerulosa, Zona fasciculate and Zona reticulate.

1. Zona glomerulosa which constitutes 15% of cortex is a thin outer layer that secretes minerals corticoids
2. Zona fasciculate the middle widest layer constitutes 75% cortex and secretes glucocorticosteroids such as cortisol, corticosterone and small amount of adrenal androgen and oestrogen.
3. Zona reticulate an inner layer of adrenal cortex constitute about 19% of the cortex and secretes adrenal androgen and small amount of estrogen and glucocorticoids.