title: Effects of narcotic analgesics on contractions of the chick isolated, innervated oesophagus.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000700:Analgesics / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D000818:Animals; D002645:Chickens; D003496:Cyclazocine / Q000494:pharmacology; D011431:Dextropropoxyphene / Q000494:pharmacology; D004558:Electric Stimulation; D004947:Esophagus / Q000187:drug effects* / Q000294:innervation; D003932:Heroin / Q000494:pharmacology; D066298:In Vitro Techniques; D008614:Meperidine / Q000494:pharmacology; D008691:Methadone / Q000494:pharmacology; D009019:Morphinans / Q000494:pharmacology; D009020:Morphine / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects*; D009269:Nalorphine / Q000494:pharmacology; D010423:Pentazocine / Q000494:pharmacology; D010620:Phenazocine / Q000494:pharmacology; D012701:Serotonin / Q000494:pharmacology; D013618:Tachyphylaxis / Q000187:drug effects; D013997:Time Factors
chemical_list: D000700:Analgesics; D009019:Morphinans; D012701:Serotonin; D003932:Heroin; D009020:Morphine; D008614:Meperidine; D010620:Phenazocine; D003496:Cyclazocine; D000109:Acetylcholine; D010423:Pentazocine; D011431:Dextropropoxyphene; D009269:Nalorphine; D008691:Methadone