title: Effect of CO2 and pH on bronchoconstriction caused by serotonin vs. acetylcholine.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000138:Acidosis / Q000503:physiopathology; D000403:Airway Resistance / Q000187:drug effects; D000818:Animals; D001980:Bronchi / Q000187:drug effects* / Q000502:physiology; D001993:Bronchodilator Agents / Q000494:pharmacology; D002245:Carbon Dioxide / Q000494:pharmacology*; D003250:Constriction; D004285:Dogs; D004336:Drug Antagonism; D004558:Electric Stimulation; D006863:Hydrogen-Ion Concentration; D006935:Hypercapnia / Q000503:physiopathology; D009130:Muscle, Smooth / Q000187:drug effects; D012702:Serotonin Antagonists; D014630:Vagus Nerve / Q000502:physiology
chemical_list: D001993:Bronchodilator Agents; D012702:Serotonin Antagonists; D002245:Carbon Dioxide; D000109:Acetylcholine