title: Opioid receptor systems and the endorphins: a review of their spinal organization.
abstract: A review of the spinal organization of opioid receptor systems and endorphins is presented. The review is a consideration of the physiological mechanisms underlying the effect of spinal opioids, the pharmacology of the opioid receptors that moderate a variety of spinal processing systems, and the endorphin systems that act upon the spinal receptors.
mesh_terms: D000818:Animals; D001341:Autonomic Nervous System / Q000502:physiology; D004723:Endorphins / Q000378:metabolism; D006801:Humans; D009068:Movement; D009474:Neurons / Q000502:physiology; D011957:Receptors, Opioid / Q000378:metabolism / Q000502:physiology*; D012018:Reflex / Q000502:physiology; D012677:Sensation / Q000502:physiology; D013116:Spinal Cord / Q000378:metabolism / Q000502:physiology*
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid