Block of conduction in partially depolarized cardiac purkinje fibres induced by an  -adrenergic agent.
D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D004285:Dogs; D004558:Electric Stimulation; D004566:Electrodes; D006329:Heart Conduction System / Q000187:drug effects*; D066298:In Vitro Techniques; D008729:Methoxamine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D010646:Phentolamine / Q000494:pharmacology; D011188:Potassium / Q000494:pharmacology
D008729:Methoxamine; D011188:Potassium; D010646:Phentolamine