Muscle, SmoothMuscle, Smooth, VascularMyocytes, Smooth MuscleMyocytes, CardiacMusclesMuscle ContractionMuscle ProteinsCells, CulturedMuscle, SkeletalMuscle Fibers, SkeletalCalciumMuscle DevelopmentMyocardiumAortaMuscle CellsGuinea PigsRabbitsTracheaRats, Sprague-DawleyMuscle RelaxationHeart VentriclesSmooth Muscle MyosinsMembrane PotentialsActinsRNA, MessengerMuscle Fibers, Fast-TwitchMuscle DenervationMuscle FatigueMitochondria, MuscleMuscle Fibers, Slow-TwitchHeartRats, WistarAorta, ThoracicSignal TransductionIsometric ContractionDose-Response Relationship, DrugTime FactorsMyocardial ContractionCalcium SignalingPatch-Clamp TechniquesSarcoplasmic ReticulumPhosphorylationEnzyme InhibitorsMuscle, StriatedPapillary MusclesPotassium ChannelsOculomotor MusclesArteriesPlatelet-Derived Growth FactorElectric StimulationMyosin Heavy ChainsCaffeinePulmonary ArteryNeck MusclesCalcium Channels, L-TypeIsoproterenolCell DivisionImmunohistochemistryVasoconstrictionAcetylcholineMuscle SpindlesRespiratory MusclesDogsCalcium ChannelsGene Expression RegulationAction PotentialsEndothelium, VascularGizzardElectrophysiologyPotassiumCarbacholHypertrophyMuscle WeaknessUrinary BladderAngiotensin IIKineticsPotassium ChlorideSarcolemmaBronchiMyosin-Light-Chain KinaseAnimals, NewbornBlotting, WesternMyosinsSodium-Calcium ExchangerMyofibrilsNitric OxideMesenteric ArteriesVentricular FunctionCoronary VesselsProto-Oncogene Proteins c-sisAbdominal MusclesDesminCalcium Channel BlockersTunica IntimaPhenylephrineCyclic GMPGene ExpressionQuadriceps MuscleVasoconstrictor AgentsMice, Knockout