stress response. activation of the stress system. stress is a main cause of high levels of adrenaline and cortisol secretion.

acth activation adrenal adrenocorticotropic anatomy axis biology blood body brain catecholamines chemical chemistry cord cortex corticotropin cortisol crh diagram endocrine function gland glands glucose glycogen health heart hormone hormones human hypothalamic hypothalamus illustration internal liver medical medicine organ pituitary releasing response scheme science secrete signaling spinal steroid stress system vector