Aldosterone
increases K+ excretion and reduces Na+ excretion to balance Na1 balance thats controlled by K+ and Na+ concentrations in ECF, levels of ACTH from ant. pituitary and renin-angiotensin system in the kidney
Aldosterone increases NA+ that
increases water retention osmotically (long term; increase in blood volume and blood pressure)
Cortisol
responds to stress controlled by ACTH secretion and daily rhythm
Cortisol promotes:
gluconeogenesis and release of glucose
Cortisol inhibits:
inflammation and depresses the immune system
Hydrodrenalism
Adison's disease: results from insufficient secretion of all adrenocortical hormones
Hyperdrenalism
Cushing's disease: results from excessive secretion of cortisol by adrenal glands
Adrenal Medulla
secretes epinephrine and norepinephrine under control of SNS