title: The kidney in health and disease: IV. Principles of ion and water transport in the kidney.
abstract: Modifications within tubular cells facilitate both outward movement and reabsorption of water and solutes through the lipid bilayer plasma membrane. The membrane transport systems that regulate these movements involve processes that obey the laws governing membrane transport in all biologic systems. Evidence that independent pathways for water and for certain ions may exist in cell membranes is discussed.
mesh_terms: D000818:Animals; D001692:Biological Transport; D002463:Cell Membrane Permeability; D007668:Kidney / Q000166:cytology / Q000502:physiology*; D000254:Sodium-Potassium-Exchanging ATPase / Q000502:physiology; D014882:Water-Electrolyte Balance
chemical_list: D000254:Sodium-Potassium-Exchanging ATPase