from the results of localization studies by injecting minute amount of narcotic antagonist naloxone into discrete brain areas and assessing its effect on acupuncture analgesia in rabbits it is concluded that nuclei accumbens , amygdala , habenula and periaquaductal grey are the strategic sites for endogenous opioids to exert their analgesic effect .
C0006104
brain
C0028633
nuclei accumbens