Effects of caffeine on the membrane potentials, membrane currents and contractility of the bullfrog atrium.
D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D002110:Caffeine / Q000494:pharmacology*; D002118:Calcium / Q000494:pharmacology; D002462:Cell Membrane / Q000187:drug effects; D004558:Electric Stimulation; D006325:Heart Atria / Q000187:drug effects*; D066298:In Vitro Techniques; D007811:Lanthanum / Q000494:pharmacology; D008564:Membrane Potentials / Q000187:drug effects*; D009200:Myocardial Contraction / Q000187:drug effects*; D011892:Rana catesbeiana; D012519:Sarcoplasmic Reticulum / Q000187:drug effects; D013779:Tetrodotoxin / Q000494:pharmacology
D002110:Caffeine; D013779:Tetrodotoxin; D007811:Lanthanum; D002118:Calcium