acute stress response. reaction of endocrine system

acth activation acute adrenal adrenalin adrenaline anatomy biology blood body brain catecholamine chemistry cortisol diagram endocrine epinephrine eyes fightorflight function gland glands glucocorticoid glucose glycogen health heart hormone human hypothalamic hypothalamus illustration liver lung lungs medical medicine metabolism norepinephrine organ pituitary pressure reaction response science secrete secretion steroid stomach stress system vector vessel