Muscle ContractionMusclesMuscle, SmoothMuscle, SkeletalIsometric ContractionMuscle ProteinsMuscle, Smooth, VascularMuscle Fibers, SkeletalMuscle FatigueElectric StimulationUterine ContractionMuscle DevelopmentMyocardial ContractionCalciumMuscle RelaxationElectromyographyMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchRabbitsMyocytes, Smooth MuscleMuscle SpindlesTracheaGuinea PigsMuscle DenervationMitochondria, MuscleMuscle, StriatedVasoconstrictionPapillary MusclesTime FactorsNeck MusclesMyofibrilsMyosinsOculomotor MusclesBiomechanical PhenomenaPeristalsisMotor NeuronsPotassium ChlorideMyosin Light ChainsActinsTropomyosinHindlimbRats, Sprague-DawleyRespiratory MusclesIsotonic ContractionDose-Response Relationship, DrugRats, WistarMuscle WeaknessAcetylcholineAbdominal MusclesQuadriceps MuscleSarcomeresTroponin CModels, BiologicalMuscle CellsFacial MusclesMolecular Sequence DataGastrointestinal MotilityTorqueUrinary BladderCarbacholCells, CulturedKineticsAdenosine TriphosphateMasticatory Musclesrho-Associated KinasesDiaphragmDogsMuscle TonusNeuromuscular JunctionPhosphorylationVasoconstrictor AgentsActomyosinCatsPhysical ExertionTroponinPhenylephrineIleumPsoas MusclesNorepinephrineSignal TransductionAmino Acid SequenceMuscular DiseasesMasseter MuscleReflexMyocardiumIntercostal MusclesCaffeineEnzyme InhibitorsMyosin-Light-Chain KinaseAtropineAorta, ThoracicPotassiumActin CytoskeletonMyographyStress, MechanicalMuscular AtrophyMyosin Heavy ChainsCalcium SignalingCholinergic AgonistsAorta