Muscle RelaxationMuscle, SmoothRelaxation TherapyMusclesMuscle ContractionMuscle, Smooth, VascularMuscle, SkeletalVasodilationMuscle ProteinsNitric OxideRelaxationMuscle Fibers, SkeletalAcetylcholineTracheaCyclic GMPVasodilator AgentsNitroprussideMuscle FatigueMuscle DevelopmentSerumEndothelium, VascularNitroarginineElectric StimulationDeuteroporphyrinsBiological FactorsRabbitsDose-Response Relationship, DrugPenisHSP20 Heat-Shock ProteinsAorta, ThoracicCalciumMuscle TonusGuinea PigsNeuromuscular BlockadeNeuromuscular Nondepolarizing AgentsOxadiazolesMuscle Fibers, Fast-TwitchNitric Oxide DonorsTime FactorsIsoproterenolMuscle DenervationNitric Oxide SynthaseGuanylate CyclaseIsometric ContractionNG-Nitroarginine Methyl EsterMuscle Fibers, Slow-TwitchAortaRats, Sprague-DawleyOpossumsVasoactive Intestinal PeptideMyocytes, Smooth MuscleRats, WistarElectromyographyMyocardial ContractionCyclic GMP-Dependent Protein KinasesEnzyme InhibitorsAnal CanalDogsMagnetic Resonance SpectroscopyMitochondria, MusclePenile ErectionPhenylephrineNitroglycerinPapillary MusclesArginineSerum AlbuminMesenteric ArteriesVasoconstrictionNeck MusclesBromcresol GreenOculomotor MusclesMuscle, StriatedVasoconstrictor AgentsAndrostanolsAdrenergic beta-Agonistsgamma-CyclodextrinsQuinoxalinesMuscle Relaxants, CentralGastric FundusMuscle SpindlesNorepinephrineRespiratory MusclesMembrane PotentialsNeuromuscular JunctionPurinonesBiomechanical PhenomenaAtracuriumMuscle WeaknessParvalbuminsIndomethacinMuscle CellsMyotonia CongenitaPotassium ChlorideMethylene BlueKineticsMyosin-Light-Chain PhosphataseAbdominal MusclesCattleNucleotides, CyclicNitric Oxide Synthase Type III