title: Role of endorphins in endogenous pain control systems.
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology; D004558:Electric Stimulation; D004597:Electroshock; D004723:Endorphins / Q000502:physiology*; D006614:Hindlimb / Q000294:innervation; D009020:Morphine / Q000494:pharmacology; D009433:Neural Inhibition / Q000187:drug effects; D009434:Neural Pathways / Q000502:physiology; D009619:Nociceptors / Q000502:physiology*; D010913:Pituitary-Adrenal System / Q000502:physiology; D051381:Rats; D011957:Receptors, Opioid / Q000502:physiology; D013312:Stress, Physiological / Q000523:psychology; D009435:Synaptic Transmission / Q000187:drug effects
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid; D009020:Morphine