adrenal cortex hormones. human endocrine system gland on the top

care anatomical internal education steroid secretion chemical infographic renal molecule adrenal endocrinology aldosterone gland flat system cell anatomy hormone vector cortisol endocrine human kidney stress response body function structure medical organ health medicine biology chemistry epinephrine adrenaline physiology norepinephrine adrenalin estrogen testosterone cortex medulla cross section science secrete corticosterone metabolism