Tetraethylammonium ion inhibition of potassium conductance of the nodal membrane.
D000818:Animals; D001001:Anura; D002118:Calcium / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D006863:Hydrogen-Ion Concentration; D008564:Membrane Potentials; D008566:Membranes / Q000187:drug effects / Q000502:physiology; D009994:Osmolar Concentration; D011188:Potassium; D011898:Ranidae; D011901:Ranvier's Nodes / Q000187:drug effects / Q000502:physiology*; D011955:Receptors, Drug; D013757:Tetraethylammonium Compounds / Q000494:pharmacology*
D011955:Receptors, Drug; D013757:Tetraethylammonium Compounds; D011188:Potassium; D002118:Calcium