Neck MusclesSpasmMusclesMuscle SpasticityMuscle, SkeletalMuscle ProteinsOccipital BoneMuscle, SmoothElectromyographySpasms, InfantileMuscle, Smooth, VascularMuscle Fibers, SkeletalNeckCervical AtlasMuscle ContractionMuscle DevelopmentNeuromuscular AgentsMotor NeuronsSpinal Cord InjuriesHead MovementsFacial MusclesHemifacial SpasmBotulinum Toxins, Type AMuscle FatigueNeck PainMuscle Fibers, Fast-TwitchMuscle DenervationHead and Neck NeoplasmsMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleHeadTorticollisMitochondria, MuscleOculomotor MusclesMuscle, StriatedMuscle SpindlesMuscle RelaxationIsometric ContractionSciatic NerveRespiratory MusclesMuscle WeaknessPapillary MusclesCoronary VasospasmElectric StimulationVibrationAbdominal MusclesQuadriceps MuscleMuscle CellsMasticatory MusclesProprioceptionMasseter MusclePosturePeripheral NervesLabyrinth DiseasesEsophageal Spasm, DiffuseIntercostal MusclesAccelerationMuscular AtrophyMastoidNerve FibersSatellite Cells, Skeletal MuscleBiomechanical PhenomenaTime FactorsPectoralis MusclesOptic NerveMuscular DiseasesCatsNerve RegenerationTemporal MuscleHindlimbPsoas MusclesMovementRabbitsWhiplash InjuriesFacial NerveMyofibrilsTegmentum MesencephaliCells, CulturedCalciumAnti-Dyskinesia AgentsErgonovinePharyngeal MusclesNerve EndingsDiaphragmNeuromuscular JunctionRats, Sprague-DawleyMyosin Heavy ChainsTibial NerveNerve BlockCervical VertebraeFixation, OcularMedian NerveSural NerveNerve CrushAngina Pectoris, VariantUlnar NerveGlycogenRNA, MessengerPeripheral Nerve InjuriesRats, Wistar