title: Atrial frequency force relations after loading the sympathetic nerves with epinephrine.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D003042:Cocaine / Q000494:pharmacology; D004558:Electric Stimulation; D004837:Epinephrine / Q000032:analysis / Q000378:metabolism / Q000494:pharmacology*; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D006325:Heart Atria / Q000032:analysis / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects; D006651:Histocytochemistry; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology; D008297:Male; D008856:Microscopy, Fluorescence; D009413:Nerve Fibers, Myelinated / Q000378:metabolism; D009638:Norepinephrine / Q000032:analysis; D010477:Perfusion; D013564:Sympathetic Nervous System / Q000187:drug effects*; D009435:Synaptic Transmission / Q000187:drug effects
chemical_list: D001285:Atropine; D003042:Cocaine; D007545:Isoproterenol; D009638:Norepinephrine; D004837:Epinephrine