CurareMuscle RelaxationMusclesMuscle, SmoothMuscle ContractionRelaxation TherapyTubocurarineMuscle, Smooth, VascularToxiferineMuscle, SkeletalMuscle ProteinsNeuromuscular JunctionAcetylcholineMuscle Fibers, SkeletalNitric OxideTissuesMyotonia CongenitaVasodilationMuscle DevelopmentMuscle FatigueElectric StimulationTracheaSuccinylcholineNeostigmineCyclic GMPDeuteroporphyrinsMembrane PotentialsBungarotoxinsHSP20 Heat-Shock ProteinsNeuromuscular BlockadeNitroprussideNeuromuscular Nondepolarizing AgentsRelaxationReceptors, CholinergicMuscle Fibers, Fast-TwitchVasodilator AgentsIsometric ContractionMuscle DenervationPenisMuscle Fibers, Slow-TwitchMuscle TonusAnuraRabbitsMotor EndplateCalciumDiaphragmGuinea PigsEndothelium, VascularDose-Response Relationship, DrugElectromyographyMyocytes, Smooth MuscleTime FactorsOpossumsMitochondria, MuscleNitroarginineAorta, ThoracicCyclic GMP-Dependent Protein KinasesNitric Oxide DonorsBiological FactorsIsoproterenolOxadiazolesNeck MusclesGuanylate CyclaseOculomotor MusclesPapillary MusclesAnal CanalMuscle, StriatedRats, Sprague-DawleyBromcresol GreenVasoactive Intestinal Peptidegamma-CyclodextrinsAndrostanolsPenile ErectionMuscle SpindlesMotor NeuronsNitric Oxide SynthaseAortaRespiratory MusclesMuscle Relaxants, CentralAtropine