title: Endogenous pain control systems: brainstem spinal pathways and endorphin circuitry.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000344:Afferent Pathways / Q000502:physiology; D000700:Analgesics; D000818:Animals; D001933:Brain Stem / Q000502:physiology*; D004399:Dynorphins; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000378:metabolism / Q000502:physiology; D008526:Medulla Oblongata / Q000502:physiology; D008954:Models, Biological; D009434:Neural Pathways / Q000033:anatomy & histology; D009474:Neurons / Q000502:physiology; D009496:Neurotensin / Q000502:physiology; D009638:Norepinephrine / Q000502:physiology; D010146:Pain; D010446:Peptide Fragments / Q000502:physiology; D010487:Periaqueductal Gray / Q000502:physiology; D010908:Pituitary Hormones, Anterior / Q000378:metabolism; D011333:Pro-Opiomelanocortin; D011498:Protein Precursors / Q000378:metabolism; D013116:Spinal Cord / Q000502:physiology*; D013312:Stress, Physiological / Q000503:physiopathology; D001615:beta-Endorphin
chemical_list: D000700:Analgesics; D004723:Endorphins; D004745:Enkephalins; D010446:Peptide Fragments; D010908:Pituitary Hormones, Anterior; D011498:Protein Precursors; C029992:proenkephalin; D009496:Neurotensin; D001615:beta-Endorphin; D011333:Pro-Opiomelanocortin; D004399:Dynorphins; C033660:preproenkephalin; D000109:Acetylcholine; D009638:Norepinephrine