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Organ specific actions of the PNS:
Heart, via M2 stimulation:
• ( decreased, increased ) SA node firing
• ( decreased, increased ) AV node conduction
• ( decreased, increased ) heart rate, contractility, and CO
Lungs, via M3 stimulation
• ( constrict, relax ) bronchial muscle
• ( increase, decrease ) secretions
• ( decrease, increase ) airway diameter
Bladder, via M3 and M2 stimulation
• ( Contraction, Relaxation ) of detrusor
• ( Relax, Contract ) sphincter
• Micturition reflex
These effects are opposite to the SNS.