title: Excitability of squid axon membrane in the absence of ion-concentration gradient across the membrane.
abstract: A squid axon membrane separating two solutions of the same chemical composition can exhibit electrical excitability. Passage of a constant inward current through such a membrane induces oscillatory responses in membrane potential. The salts of cobalt, manganese, nickel, and barium are suitable as a constituent in the solution for demonstrating this oscillatory response.
mesh_terms: D000818:Animals; D001369:Axons / Q000502:physiology*; D002463:Cell Membrane Permeability; D049832:Decapodiformes; D004558:Electric Stimulation; D007473:Ion Channels / Q000502:physiology*; D008564:Membrane Potentials; D009435:Synaptic Transmission
chemical_list: D007473:Ion Channels