title: Is there a "pure" beta-adrenoceptor response to norepinephrine in the heart?
mesh_terms: D000818:Animals; D006321:Heart / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects; D009200:Myocardial Contraction / Q000187:drug effects; D009638:Norepinephrine / Q000494:pharmacology*; D010646:Phentolamine / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D011942:Receptors, Adrenergic, alpha / Q000187:drug effects*; D013268:Stimulation, Chemical
chemical_list: D011942:Receptors, Adrenergic, alpha; D009638:Norepinephrine; D010646:Phentolamine