Hypertonic SolutionsGlucose Solution, HypertonicWaterSaline Solution, HypertonicIsotonic SolutionsHypotonic SolutionsSolutionsOsmolar ConcentrationOsmosisSucroseOsmotic PressureMannitolRana temporariaTetracaineSodium ChlorideDiuretics, OsmoticAnuraWater-Electrolyte BalanceRana pipiensWater SupplyTromethaminePotassiumMusclesSodiumMembrane PotentialsPotassium ChlorideMuscle ContractionCell Membrane PermeabilityBody WaterFresh WaterChloridesGuinea PigsCaffeineGlycerolSulfatesSodium-Potassium-Chloride SymportersUreaCalciumAction PotentialsMyofibrilsNeuromuscular JunctionWater PurificationWater PollutionMuscle, SmoothCell SizeOuabainTime FactorsElectrophysiologyElectric StimulationExtracellular SpaceWater Pollutants, ChemicalAcetylcholineWater PollutantsTemperaturePharmaceutical SolutionsKineticsMicroscopy, Electron