opioid-mediated analgesia system
opioid-mediated analgesia system
Neurology A neurohumoral system that modulates the transmission of pain; OMAS neurons are activated by noxious stimuli, or by input from the pain-transmission neurons they inhibit. See Opioid-mediated analgesia system.McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.