title: Evidence for functional interactions of morphine in substantia nigra and striatum in relation to muscular rigidity in rats.
mesh_terms: D000818:Animals; D003342:Corpus Striatum / Q000503:physiopathology*; D004576:Electromyography; D008297:Male; D009020:Morphine; D009127:Muscle Rigidity / Q000139:chemically induced* / Q000503:physiopathology; D051381:Rats; D011919:Rats, Inbred Strains; D011957:Receptors, Opioid / Q000502:physiology; D013378:Substantia Nigra / Q000503:physiopathology*; D005680:gamma-Aminobutyric Acid / Q000502:physiology
chemical_list: D011957:Receptors, Opioid; D005680:gamma-Aminobutyric Acid; D009020:Morphine