下丘脑垂体-肾上腺皮质条统 (Hypothalamus-pituitary-adrenal cortex system, HPA) Pain,fear Central Infection nervous Hypothalamus CRH hemorrage system (ng) hypoglycemia Anterior Cortisol Adrenal pituitary (mg) gland ↓ ACTH CRH: corticotropin-releasing hormone (促肾上腺皮质激素释放激素) (μg) ACTH:adrenocorticotropic hormone (促肾上腺皮质激素) 下丘脑-垂体-肾上腺皮质系统 (Hypothalamus-pituitary-adrenal cortex system, HPA) Adrenal gland Pain, fear Infection hemorrage hypoglycemia Central nervous system CRH (ng) Hypothalamus Anterior pituitary ACTH ( µg) Cortisol (mg) CRH: corticotropin-releasing hormone （促肾上腺皮质激素释放激素） ACTH: adrenocorticotropic hormone （促肾上腺皮质激素）