The inhibitory action of morphine on the contraction of the longitudinal muscle coat of the isolated guinea-pig ileum.
D000109:Acetylcholine; D001285:Atropine; D002217:Carbachol; D006168:Guinea Pigs; D018738:Hexamethonium; D006632:Histamine; D007082:Ileum; D007422:Intestines / Q000187:drug effects*; D009020:Morphine / Q000494:pharmacology*; D009132:Muscles; D009538:Nicotine; D012701:Serotonin
D012701:Serotonin; D018738:Hexamethonium; D009538:Nicotine; D009020:Morphine; D001285:Atropine; D006632:Histamine; D002217:Carbachol; D000109:Acetylcholine
INTESTINES/effect of drugs on; MORPHINE/effects