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ANS Receptors Table
ANS a/b/m Receptors
Question | Answer |
---|---|
M1 | EPSPs |
M1 | Salivary |
M1 | GI |
M1 | Bronchoconstriction |
M2 | Slow HR |
M2 | Reduce contractility |
M2 | Slow AV node conduction |
M3 | Smooth Mm constriction |
M3 | Vasoconstriction (via NO) |
M3 | Activates glands |
α1 | Smooth Mm contraction |
α1 | Vasoconstriction |
α1 | Pupil dilation |
α1 | Sphincter close |
α1 | Na+ reabsorption kidney |
α1 | Increase inotropic (contractility) |
α2 | Pancreas: inhibit insulin-stimulate glucagon |
α2 | Contract GI sphincters |
α2 | Decrease salivary gland secretion |
α2 | Neg Neuronal Feedback: decr ACh, NE release |
β1 | Increase CO: raise HR (chronotropic effect) |
β1 | Renin release from JG = incr BP |
β1 | Stimulate salivary secretions |
β2 | Smooth Mm relax |
β2 | Bronchodilation |
β2 | Vasodilation |
β2 | Increase renin secretion |
β2 | Promotes insulin release |
β2 | Glycogenolysis/Gluconeogenesis |
β2 | Gi; inhibit AC |
β1 | Gs; Stimulate AC |
α2 | inhibitory; Gi; inhibit AC |
α1 | excitatory; Gq; stimulate PLC |
M3 | excitatory; Gq; stimulate PLC |
M2 | inhibitory; Gi; inhibit AC |
M1 | excitatory; Gq; stimulate PLC |
inhibit AC | α2,β2,M2 |
stimulate PLC | α1,M1,M3 |