Muscle RelaxationSpasmSpasms, InfantileInflammationMuscle, SmoothMusclesHemifacial SpasmMuscle ContractionRelaxation TherapyMuscle, Smooth, VascularMuscle, SkeletalMuscle ProteinsCoronary VasospasmMuscle Fibers, SkeletalNitric OxideEsophageal Spasm, DiffuseVasodilationMuscle DevelopmentTracheaMuscle FatigueAcetylcholineCyclic GMPInflammation MediatorsDeuteroporphyrinsFacial MusclesVasodilator AgentsHSP20 Heat-Shock ProteinsNeuromuscular BlockadeEndothelium, VascularNitroprussideElectric StimulationDose-Response Relationship, DrugNeuromuscular Nondepolarizing AgentsErgonovineRabbitsRelaxationMuscle Fibers, Fast-TwitchMuscle TonusIsometric ContractionMuscle DenervationGuinea PigsPenisElectromyographyCalciumTime FactorsMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleAntigens, CD81Mice, Inbred C57BLAngina Pectoris, VariantOpossumsMitochondria, MuscleNeck MusclesAorta, ThoracicNitroglycerinOculomotor MusclesNitroarginineNitric Oxide DonorsDisease Models, AnimalCyclic GMP-Dependent Protein KinasesMuscle Relaxants, CentralBiological FactorsNitric Oxide SynthaseOxadiazolesIsoproterenolRats, WistarMice, KnockoutGuanylate CyclasePapillary MusclesAnal CanalAortaVasoactive Intestinal PeptideMuscle, StriatedBromcresol Greengamma-CyclodextrinsAndrostanolsEnzyme InhibitorsPenile ErectionMuscle SpindlesRespiratory MusclesSignal TransductionCells, CulturedMuscle WeaknessNG-Nitroarginine Methyl EsterVasoconstrictionRNA, MessengerDogsAtracuriumNeuromuscular JunctionMuscle CellsMyotonia CongenitaAbdominal MusclesAdrenergic beta-AgonistsMyocardial ContractionMasticatory MusclesMasseter MuscleBiomechanical PhenomenaQuadriceps MusclePhenylephrineVecuronium Bromide