[Antagonistic actions of magnesium, calcium and sodium ions on impulse generation in the sinus node of the guinea pig heart].
D000200:Action Potentials; D000818:Animals; D016275:Atrial Function; D001285:Atropine / Q000494:pharmacology; D002118:Calcium / Q000037:antagonists & inhibitors; D002122:Calcium Chloride / Q000494:pharmacology*; D004983:Ethanolamines / Q000494:pharmacology; D006168:Guinea Pigs; D006329:Heart Conduction System / Q000502:physiology*; D066298:In Vitro Techniques; D008274:Magnesium / Q000037:antagonists & inhibitors; D008278:Magnesium Sulfate / Q000494:pharmacology*; D008297:Male; D012849:Sinoatrial Node / Q000187:drug effects / Q000502:physiology; D012964:Sodium / Q000037:antagonists & inhibitors; D012965:Sodium Chloride / Q000494:pharmacology*
D004983:Ethanolamines; D012965:Sodium Chloride; D008278:Magnesium Sulfate; D001285:Atropine; D012964:Sodium; D008274:Magnesium; D002122:Calcium Chloride; D002118:Calcium
Antagonistische Wirkungen von Magnesium-, Calcium- und Natriumionen auf die Impulsbildung im Sinusknoten des Meerschweinchenherzens.