SpasmMuscle SpasticityMusclesNeck MusclesSpasms, InfantileCervical AtlasOccipital BoneNeuromuscular AgentsMuscle ProteinsMuscle, SmoothMuscle, SkeletalSpinal Cord InjuriesMuscle, Smooth, VascularMuscle Fibers, SkeletalHemifacial SpasmMotor NeuronsBotulinum Toxins, Type AElectromyographyMuscle ContractionMuscle DevelopmentSciatic NerveMuscle FatigueMuscle Fibers, Fast-TwitchCoronary VasospasmMuscle DenervationMuscle Fibers, Slow-TwitchFacial MusclesMyocytes, Smooth MuscleMitochondria, MusclePeripheral NervesOculomotor MusclesEsophageal Spasm, DiffuseMuscle RelaxationMuscle SpindlesMuscle, StriatedNerve FibersMuscle WeaknessRespiratory MusclesOptic NervePapillary MusclesAbdominal MusclesQuadriceps MuscleMasticatory MusclesMuscle CellsNerve RegenerationMasseter MuscleFacial NerveElectric StimulationErgonovineIntercostal MusclesMuscular AtrophyIsometric ContractionNerve EndingsSatellite Cells, Skeletal MuscleNerve BlockTibial NerveAngina Pectoris, VariantMedian NerveSural NervePectoralis MusclesMuscular DiseasesTime FactorsNerve CrushUlnar NervePeripheral Nerve InjuriesTemporal MuscleHindlimbRabbitsPsoas MusclesFemoral NerveNerve Compression SyndromesRats, Sprague-DawleyCalciumMyofibrilsCells, CulturedNeuromuscular JunctionSpinal NervesPharyngeal MusclesTrigeminal NerveDiaphragmSpinal Nerve RootsPhrenic NerveMyosin Heavy ChainsFacial Nerve DiseasesRadial NerveBiomechanical PhenomenaNeural ConductionMuscle CrampNerve Growth FactorsRats, WistarNerve Growth Factor