Route of passive ion permeation in epithelia.
D000818:Animals; D001692:Biological Transport; D001693:Biological Transport, Active; D002463:Cell Membrane Permeability; D004058:Diffusion; D004594:Electrophysiology; D004847:Epithelial Cells; D004848:Epithelium / Q000502:physiology; D005704:Gallbladder / Q000166:cytology* / Q000502:physiology; D007477:Ions; D008839:Microelectrodes; D009994:Osmolar Concentration; D014562:Caudata; D014882:Water-Electrolyte Balance
D007477:Ions