Tetrabutylammonium affects the nodal nerve membrane from inside only.
D000818:Animals; D001369:Axons / Q000187:drug effects; D002463:Cell Membrane Permeability; D007473:Ion Channels / Q000187:drug effects*; D008564:Membrane Potentials / Q000187:drug effects; D009413:Nerve Fibers, Myelinated / Q000187:drug effects*; D011188:Potassium / Q000378:metabolism; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*; D014982:Xenopus laevis
D007473:Ion Channels; D000644:Quaternary Ammonium Compounds; C009405:tetrabutylammonium; D011188:Potassium