title: Micropuncture of lateral intercellular spaces of Necturus gallbladder to determine space fluid K+ concentration.
mesh_terms: D000818:Animals; D001826:Body Fluids / Q000032:analysis*; D005704:Gallbladder / Q000032:analysis*; D007424:Intracellular Fluid / Q000032:analysis*; D008839:Microelectrodes; D008846:Micromanipulation / Q000379:methods; D011188:Potassium / Q000032:analysis*; D014562:Caudata
chemical_list: D011188:Potassium