Zones of the adrenal cortex, Corticoids:
Outer zone secretes mineralocorticoids, Middle zone secretes glucocorticoids, Innermost/deepest zone secretes sex hormones:
Functions of Mineralocorticoids (MCs)
MCs increase blood sodium and decrease body potassium concentrations by accelerating kidney tubule reabsorption of sodium and excretion of potassium.
Functions of chief glucocorticoid (GC)
Help maintain normal blood glucose concentration by increasing gluconeogenesis
Adrenal medulla
is the inner portion of the adrenal gland.