Molecular events that underlie membrane excitation.
D000200:Action Potentials; D000818:Animals; D001369:Axons / Q000502:physiology*; D002462:Cell Membrane / Q000502:physiology* / Q000648:ultrastructure; D049832:Decapodiformes; D004553:Electric Conductivity; D004594:Electrophysiology; D006801:Humans; D008959:Models, Neurological