fight-or-flight response. stress response system

adrenal adrenalin adrenaline anatomy axis biology blood body care catecholamine catecholamines chemical chemistry cortisol decreased diabetes diagram digestive dilation dopamine education endocrine epinephrine function gland glands glucose glycogen health heart high hormone hormones human hydrocortisone hypothalamic hypothalamus illustration impulses increased insulin leptin liver lungs medical medicine metabolism norepinephrine organ pituitary pressure rate resistance response secretion stomach stress system