CurareMuscle RelaxationMusclesMuscle, SmoothAbdomenAbdomen, AcuteMuscle 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 DenervationPenisDiaphragmMuscle Fibers, Slow-TwitchMuscle TonusTime FactorsAnuraRabbitsMotor EndplateElectromyographyGuinea PigsCalciumEndothelium, VascularMyocytes, Smooth MuscleDose-Response Relationship, DrugOpossumsMitochondria, MuscleNitroarginineAorta, ThoracicCyclic GMP-Dependent Protein KinasesNitric Oxide DonorsBiological FactorsAbdominal MusclesIsoproterenolOxadiazolesNeck MusclesGuanylate CyclaseOculomotor MusclesPapillary MusclesAnal CanalMuscle, StriatedBromcresol Greengamma-CyclodextrinsAndrostanolsVasoactive Intestinal PeptideRats, Sprague-DawleyPenile ErectionRespiratory MusclesMuscle SpindlesMotor NeuronsNitric Oxide SynthaseRadiography, AbdominalAortaMuscle Relaxants, CentralAtropineRats, Wistar