Possible origin of action potential and birefringence change in nerve axon.
D000200:Action Potentials; D001369:Axons / Q000166:cytology / Q000502:physiology*; D001692:Biological Transport; D001718:Birefringence; D002462:Cell Membrane / Q000502:physiology; D004594:Electrophysiology; D008433:Mathematics; D008564:Membrane Potentials; D008954:Models, Biological