Muscle RelaxationVasodilationPulmonary ArteryGuanylate CyclaseNitric OxideVasodilator AgentsMuscle, SmoothArteriesRelaxation TherapyMusclesMuscle ContractionMuscle, Smooth, VascularMuscle, SkeletalMuscle ProteinsMesenteric ArteriesRelaxationAcetylcholineMuscle Fibers, SkeletalEndothelium, VascularCyclic GMPNitroprussideTracheaCarotid ArteriesCerebral ArteriesRenal ArteryBasilar ArteryFemoral ArteryMuscle DevelopmentMuscle FatigueSerumRabbitsDose-Response Relationship, DrugBiological FactorsNitroarginineAorta, ThoracicElectric StimulationTime FactorsMuscle TonusPenisCalciumDeuteroporphyrinsHSP20 Heat-Shock ProteinsGuinea PigsVasoconstrictionCoronary VesselsNeuromuscular BlockadeNitric Oxide SynthaseAortaRats, Sprague-DawleyNG-Nitroarginine Methyl EsterOxadiazolesDogsNitric Oxide DonorsRats, WistarNeuromuscular Nondepolarizing AgentsIsometric ContractionMyocytes, Smooth MuscleIsoproterenolMuscle Fibers, Fast-TwitchMammary ArteriesNitroglycerinIliac ArteryEnzyme InhibitorsVasoconstrictor AgentsMuscle DenervationPhenylephrineMuscle Fibers, Slow-TwitchCoronary Artery BypassMyocardial ContractionVasoactive Intestinal PeptideRadial ArteryOpossumsVertebral ArteryCyclic GMP-Dependent Protein KinasesElectromyographyArginineNorepinephrineAnal CanalMagnetic Resonance SpectroscopyPapillary MusclesPenile ErectionMitochondria, MuscleSerum AlbuminCarotid Artery, InternalBlood PressureMesenteric Artery, SuperiorSubclavian ArteryQuinoxalinesNeck MusclesAdrenergic beta-AgonistsOculomotor MusclesBromcresol GreenPotassium ChlorideBrachial ArteryMuscle, StriatedCarotid Artery DiseasesAndrostanolsMembrane PotentialsIndomethacingamma-Cyclodextrins