CarbacholGuinea PigsCholinergic AgonistsGuineaReceptors, MuscarinicPapua New GuineaMuscarinic AgonistsNew GuineaAtropineMuscle, SmoothParasympathomimeticsMuscarinic AntagonistsReceptor, Muscarinic M3Muscle ContractionTracheaQuinuclidinyl BenzilateCalciumReceptor, Muscarinic M2IleumHistaminePirenzepineN-MethylscopolamineEquatorial GuineaAcetylcholineDose-Response Relationship, DrugParasympatholyticsParotid GlandCholinergic AgentsReceptor, Muscarinic M1Inositol PhosphatesPhosphatidylinositolsUrinary BladderMuscle RelaxationMembrane PotentialsIsoproterenolReceptors, CholinergicSincalideOxotremorineDiaminesElectric StimulationPotassiumParasympathetic Nervous SystemParietal Cells, GastricLacrimal ApparatusHexamethonium CompoundsPhysostigmineRabbitsColforsinChloridesAminopyrinePotassium ChlorideEccrine GlandsStimulation, ChemicalCyclic AMPType C PhospholipasesAction PotentialsColonPropylbenzilylcholine MustardCholinergic AntagonistsKineticsScopolamine DerivativesPonsMioticsInositol 1,4,5-TrisphosphatePilocarpineSugar PhosphatesProtein Kinase CPancreasHexamethoniumPertussis ToxinHeartTime FactorsNorepinephrineElectrophysiologyVirulence Factors, BordetellaAmylasesRats, Sprague-DawleyCholecystokininBronchoconstrictionSubstance PTubocurarineTetrodotoxinNeuromuscular Depolarizing AgentsSweat GlandsRats, WistarCells, CulturedRats, Inbred StrainsPiperidinesCholinergic FibersCalcium Channel BlockersThapsiaDecamethonium CompoundsGuanosine 5'-O-(3-Thiotriphosphate)SodiumCalcimycinMyocardiumGTP-Binding ProteinsCecumPyrilamineFura-2