Multiple opiate receptor sites on primary afferent fibres.
D000344:Afferent Pathways / Q000378:metabolism*; D000818:Animals; D003342:Corpus Striatum / Q000378:metabolism; D004745:Enkephalins / Q000378:metabolism; D005727:Ganglia, Spinal / Q000378:metabolism*; D008297:Male; D009020:Morphine / Q000378:metabolism; D009046:Motor Neurons / Q000378:metabolism; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*; D012584:Sciatic Nerve / Q000502:physiology; D013116:Spinal Cord / Q000378:metabolism
D004745:Enkephalins; D011957:Receptors, Opioid; D009020:Morphine