SpasmMuscle RelaxationMuscle Relaxants, CentralMuscle SpasticityMusclesNeck MusclesMuscle, SmoothSpasms, InfantileCervical AtlasOccipital BoneNeuromuscular AgentsMuscle ContractionMuscle, Smooth, VascularMuscle ProteinsMuscle, SkeletalNeuromuscular Nondepolarizing AgentsSpinal Cord InjuriesElectromyographyMuscle Fibers, SkeletalHemifacial SpasmBotulinum Toxins, Type AMotor NeuronsVecuronium BromideMuscle DevelopmentNeuromuscular Blocking AgentsAtracuriumPancuroniumSuccinylcholineMuscle FatigueAndrostanolsRelaxation TherapyMuscle Fibers, Fast-TwitchCoronary VasospasmMuscle DenervationMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleFacial MusclesTolperisoneMitochondria, MuscleEsophageal Spasm, DiffuseAcetylcholineOculomotor MusclesTracheaElectric StimulationMuscle, StriatedVasodilationTubocurarineNeuromuscular Depolarizing AgentsPapillary MusclesMuscle SpindlesRespiratory MusclesCarisoprodolNitric OxideMuscle RigidityMuscle WeaknessRabbitsDose-Response Relationship, DrugIsometric ContractionGuinea PigsAbdominal MusclesCalciumDantroleneMuscle CellsVasodilator AgentsQuadriceps MuscleNeuromuscular JunctionMephenesinTime FactorsMasticatory MusclesMasseter MuscleNeuromuscular BlockadeIntercostal MusclesRelaxationCyclic GMPErgonovineParasympatholyticsNitroprussideRats, Sprague-DawleyMuscular AtrophyEndothelium, VascularSatellite Cells, Skeletal MusclePropiophenonesAorta, ThoracicAngina Pectoris, VariantRats, WistarPectoralis MusclesPapaverineNeostigmineIntubation, IntratrachealAnesthesiaPenisAortaMuscular DiseasesNitroarginineMyofibrilsMuscle TonusPsoas MusclesGallamine TriethiodidePipecuroniumBiomechanical Phenomena