title: Antagonism of descending effects of the substantia nigra on lumbo-sacral monosynaptic reflexes.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002415:Cats; D002746:Chlorpromazine / Q000494:pharmacology; D004295:Dihydroxyphenylalanine / Q000037:antagonists & inhibitors / Q000494:pharmacology; D006220:Haloperidol / Q000494:pharmacology; D008784:Methysergide / Q000494:pharmacology; D012023:Reflex, Monosynaptic / Q000187:drug effects*; D013378:Substantia Nigra / Q000187:drug effects* / Q000502:physiology; D013997:Time Factors; D014326:Tropanes / Q000494:pharmacology
chemical_list: D014326:Tropanes; D004295:Dihydroxyphenylalanine; D001285:Atropine; D006220:Haloperidol; D002746:Chlorpromazine; D008784:Methysergide