title: Comparative sensitivity of different regions of human gastrointestinal tract.
mesh_terms: D000109:Acetylcholine / Q000037:antagonists & inhibitors; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D003106:Colon / Q000187:drug effects; D004064:Digestive System / Q000187:drug effects*; D004576:Electromyography / Q000295:instrumentation; D006801:Humans; D007082:Ileum / Q000187:drug effects; D008688:Methacholine Compounds / Q000037:antagonists & inhibitors; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects; D009132:Muscles / Q000187:drug effects; D011817:Rabbits; D013270:Stomach / Q000187:drug effects
chemical_list: D008688:Methacholine Compounds; D001285:Atropine; D000109:Acetylcholine