title: Intracellular potassium activity measurements in single proximal tubules of Necturus kidney.
mesh_terms: D000818:Animals; D002712:Chlorides / Q000502:physiology; D003593:Cytoplasm / Q000502:physiology; D005110:Extracellular Space / Q000502:physiology; D007687:Kidney Tubules, Proximal / Q000033:anatomy & histology / Q000502:physiology*; D008564:Membrane Potentials / Q000187:drug effects; D009337:Necturus; D010042:Ouabain / Q000494:pharmacology; D011188:Potassium / Q000502:physiology*; D012964:Sodium / Q000502:physiology
chemical_list: D002712:Chlorides; D010042:Ouabain; D012964:Sodium; D011188:Potassium