CarbacholElectric StimulationCholinergic FibersVagus Nerve StimulationParasympathetic Nervous SystemTranscutaneous Electric Nerve StimulationAtropineAcetylcholineNerve EndingsElectric Stimulation TherapyMuscle ContractionMuscle, SmoothGuinea PigsVagus NervePhysostigmineReceptors, MuscarinicSympathetic Nervous SystemCholine O-AcetyltransferaseGuanethidineSciatic NerveVesicular Acetylcholine Transport ProteinsHemicholinium 3Nerve FibersPeripheral NervesNorepinephrineBretylium CompoundsMuscarinic AntagonistsCholinergic AgonistsStimulation, ChemicalCatsTracheaHexamethonium CompoundsIleumParasympatholyticsTetrodotoxinAdrenergic FibersNeuromuscular JunctionSynaptic TransmissionPhysical StimulationElectric OrganHexamethoniumTibial NervePhrenic NerveSplanchnic NervesMedian NerveDeep Brain StimulationRats, Sprague-DawleyCholinergic NeuronsVasoactive Intestinal PeptideAcetylcholinesteraseOptic NerveDose-Response Relationship, DrugTranscranial Magnetic StimulationScopolamine HydrobromideDogsCholineReceptor, Muscarinic M2Myenteric PlexusUrinary BladderCells, CulturedPirenzepineCalciumSynaptosomesSubstance PTime FactorsHistamineAction PotentialsSural NerveFemoral NerveMuscarinic AgonistsSpinal NervesGastrointestinal MotilityUlnar NerveNerve RegenerationNeurotransmitter AgentsNerve BlockElectrodes, ImplantedHistocytochemistryTrigeminal NerveParasympathomimeticsEvoked PotentialsNeuronsFacial NerveNeural ConductionPhentolamineMotor NeuronsElectromyographyCell LineRadial NerveSignal TransductionPiperidinesMice, Inbred C57BLReceptors, CholinergicRabbitsAfferent PathwaysReflexNictitating MembraneColonElectrophysiologyTorpedo