Muscle Fibers, Slow-TwitchMusclesMuscle Fibers, Fast-TwitchMuscle ContractionMuscle Fibers, SkeletalRana temporariaMuscle, SkeletalMuscle DenervationMurexideSarcoplasmic ReticulumSnakesColubridaeCalcium-Transporting ATPasesMuscle ProteinsCalciumElectric StimulationNerve FibersRabbitsMyofibrilsAnuraArsenazo IIINaphthalenesulfonatesMotor NeuronsMotor EndplateNeural ConductionRana pipiensMembrane PotentialsMuscle DevelopmentMuscle, SmoothTime FactorsDiacetylAction PotentialsIsometric ContractionDietary FiberCatsNeuromuscular JunctionDiaphragmPhenolsulfonphthaleinMuscle, Smooth, VascularMyosin Heavy ChainsMineral FibersSarcomeresMuscle FatigueElectrophysiologyMyocardiumElectromyographyMuscle SpindlesMitochondria, MuscleMuscle RelaxationPapillary MusclesPsoas MusclesCotton FiberOculomotor MusclesMuscular AtrophyKineticsPurkinje FibersMuscular DiseasesElectric ConductivityHindlimbTubocurarineMyosinsBiomechanical PhenomenaCaffeineMuscle WeaknessQuadriceps MuscleMuscle, StriatedNeuromuscular Nondepolarizing AgentsRespiratory MusclesThoracicaStress FibersNeuromuscular Blocking AgentsMyocardial ContractionMasseter MuscleHistocytochemistryMuscular Dystrophy, AnimalMolecular Sequence DataRanidaeNerve Fibers, MyelinatedTetanyMasticatory MusclesSuccinylcholineNeck MusclesAbdominal MusclesRats, WistarPhrenic NerveSatellite Cells, Skeletal MuscleMicroscopy, ElectronMyocytes, Smooth MuscleSarcolemmaIntercostal MusclesBase SequenceMice, Inbred mdxRana esculentaPancuroniumTorqueModels, BiologicalAxonsMossy Fibers, HippocampalVecuronium BromideRats, Sprague-Dawley