CurareMuscle RelaxationMusclesMuscle, SmoothMuscle ContractionRelaxation TherapyTubocurarineMuscle, Smooth, VascularToxiferineMuscle, SkeletalMuscle ProteinsNeuromuscular JunctionAcetylcholineMuscle Fibers, SkeletalNitric OxideTissuesMyotonia CongenitaVasodilationMuscle DevelopmentMuscle FatigueTracheaElectric StimulationSuccinylcholineNeostigmineCyclic GMPDeuteroporphyrinsMembrane PotentialsBungarotoxinsHSP20 Heat-Shock ProteinsNeuromuscular BlockadeNitroprussideNeuromuscular Nondepolarizing AgentsRelaxationMuscle Fibers, Fast-TwitchReceptors, CholinergicVasodilator AgentsIsometric ContractionMuscle DenervationPenisMuscle Fibers, Slow-TwitchMuscle TonusAnuraRabbitsMotor EndplateDiaphragmGuinea PigsCalciumEndothelium, VascularElectromyographyMyocytes, Smooth MuscleTime FactorsDose-Response Relationship, DrugOpossumsMitochondria, MuscleNitroarginineAorta, ThoracicCyclic GMP-Dependent Protein KinasesNitric Oxide DonorsBiological FactorsIsoproterenolOxadiazolesNeck MusclesGuanylate CyclaseOculomotor MusclesPapillary MusclesAnal CanalMuscle, StriatedBromcresol Greengamma-CyclodextrinsAndrostanolsVasoactive Intestinal PeptidePenile ErectionMuscle SpindlesRats, Sprague-DawleyMotor NeuronsNitric Oxide SynthaseAortaRespiratory MusclesMuscle Relaxants, CentralAtropine