title: Inhibitory effects of substantia nigra on impulse transmission from nociceptors.
mesh_terms: D000818:Animals; D001058:Apomorphine / Q000494:pharmacology; D001060:Aporphines / Q000494:pharmacology; D002415:Cats; D004558:Electric Stimulation; D005260:Female; D007980:Levodopa / Q000494:pharmacology; D008297:Male; D008784:Methysergide / Q000494:pharmacology; D009433:Neural Inhibition / Q000187:drug effects*; D009619:Nociceptors / Q000502:physiology*; D010812:Physical Stimulation; D012701:Serotonin / Q000494:pharmacology; D013378:Substantia Nigra / Q000502:physiology*; D009435:Synaptic Transmission / Q000187:drug effects*; D013747:Tetrabenazine / Q000494:pharmacology
chemical_list: D001060:Aporphines; D012701:Serotonin; D007980:Levodopa; D001058:Apomorphine; D008784:Methysergide; D013747:Tetrabenazine