II. The colon. The pharmacology of colonic muscle.
D001920:Bradykinin / Q000494:pharmacology*; D003106:Colon / Q000187:drug effects*; D006632:Histamine / Q000494:pharmacology*; D006801:Humans; D009130:Muscle, Smooth / Q000187:drug effects*; D009538:Nicotine / Q000494:pharmacology*; D012701:Serotonin / Q000494:pharmacology*
D012701:Serotonin; D009538:Nicotine; D006632:Histamine; D001920:Bradykinin