title: A dual preparation technique for studying the differentiation of the effect of sympathomimetic agents on heart and tracheal muscle.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000494:pharmacology; D000605:Amino Alcohols / Q000494:pharmacology; D000818:Animals; D001993:Bronchodilator Agents / Q000494:pharmacology*; D004837:Epinephrine / Q000494:pharmacology; D006168:Guinea Pigs; D006325:Heart Atria / Q000187:drug effects; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology; D008297:Male; D008722:Methods; D009119:Muscle Contraction / Q000187:drug effects*; D009638:Norepinephrine / Q000494:pharmacology; D013566:Sympathomimetics / Q000494:pharmacology*; D014132:Trachea / Q000187:drug effects
chemical_list: D000318:Adrenergic beta-Agonists; D000605:Amino Alcohols; D001993:Bronchodilator Agents; D013566:Sympathomimetics; D007545:Isoproterenol; D009638:Norepinephrine; D004837:Epinephrine