CarbacholCholinergic AgonistsReceptors, MuscarinicMuscarinic AgonistsAtropineParasympathomimeticsMuscle, SmoothMuscarinic AntagonistsReceptor, Muscarinic M3Quinuclidinyl BenzilateGuinea PigsMuscle ContractionReceptor, Muscarinic M2CalciumPirenzepineN-MethylscopolamineTracheaParasympatholyticsIleumHistamineAcetylcholineParotid GlandCholinergic AgentsReceptor, Muscarinic M1Inositol PhosphatesPhosphatidylinositolsDose-Response Relationship, DrugReceptors, CholinergicUrinary BladderOxotremorinePotassiumDiaminesSincalideParietal Cells, GastricIsoproterenolMuscle RelaxationParasympathetic Nervous SystemHexamethonium CompoundsLacrimal ApparatusMembrane PotentialsEccrine GlandsPhysostigmineAminopyrineCholinergic AntagonistsColforsinType C PhospholipasesElectric StimulationPonsPotassium ChloridePropylbenzilylcholine MustardScopolamine DerivativesSugar PhosphatesMioticsInositol 1,4,5-TrisphosphateChloridesPilocarpineStimulation, ChemicalCyclic AMPSweat GlandsProtein Kinase CPertussis ToxinTubocurarineThapsiaDecamethonium CompoundsVirulence Factors, BordetellaRats, Sprague-DawleyNeuromuscular Depolarizing AgentsAmylasesCholecystokininRats, WistarNorepinephrineHexamethoniumColonCholinergic FibersPancreasThapsigarginInositolGuanosine 5'-O-(3-Thiotriphosphate)Rats, Inbred StrainsGTP-Binding Proteins