title: Interaction between sodium ion and non-electrolytes in the countercurrent systems of the kidney.
mesh_terms: D000818:Animals; D001128:Argon; D002463:Cell Membrane Permeability; D003377:Countercurrent Distribution; D006371:Helium; D007668:Kidney / Q000378:metabolism*; D007679:Kidney Medulla / Q000378:metabolism; D008138:Loop of Henle / Q000378:metabolism; D008433:Mathematics; D008954:Models, Biological; D009584:Nitrogen; D012964:Sodium / Q000378:metabolism*; D014556:Urine
chemical_list: D006371:Helium; D001128:Argon; D012964:Sodium; D009584:Nitrogen