CAESUM IONS DO  NOT PASS THE MEMBRANE OF THE GIANT AXON.
D000818:Animals; D001369:Axons; D001692:Biological Transport; D002463:Cell Membrane Permeability; D002586:Cesium; D007477:Ions; D008974:Mollusca; D011188:Potassium; D012106:Research; D012413:Rubidium; D012964:Sodium
D007477:Ions; D002586:Cesium; D012964:Sodium; D012413:Rubidium; D011188:Potassium
AXONS; BIOLOGICAL TRANSPORT; CELL MEMBRANE PERMEABILITY; CESIUM; EXPERIMENTAL LAB STUDY; MOLLUSCA; POTASSIUM; RUBIDIUM; SODIUM