Sympathetic Nervous System | Parasympathetic Nervous System | |
---|---|---|
Heart | ||
Sinoatrial node | Tachycardia | Bradycardia |
Atrioventricular node | Increased conduction | Decreased conduction |
His-Purkinje system | Increased automaticity | Minimal effect |
Increased conduction velocity | ||
Myocardium | Increased contractility | Minimal decrease in contractility |
Increased conduction velocity | ||
Increased automaticity | ||
Coronary vessels | Constriction (α 1) | |
Dilation (β 1) | ||
Blood Vessels | ||
Skin and mucosa | Constriction | Dilation |
Skeletal muscle | Constriction | Dilation |
(α 1) > Dilation (β) | ||
Pulmonary | Constriction | Dilation |
Bronchial Smooth Muscle | Relaxation | Contraction |
Gastrointestinal Tract | ||
Gallbladder | Relaxation | Contraction |
Gut motility and secretions | Decreased | Increased |
Bladder | ||
Detrusor | Relaxation | Contraction |
Trigone | Contraction | Relaxation |
Glands (nasal, lacrimal, salivary, pancreatic) | Vasoconstriction and reduced secretion | Stimulation of secretions |
Sweat Glands | Diaphoresis (cholinergic) | No effect |
Apocrine Glands | Thick and odiferous secretions | No effect |
Eyes | ||
Pupil | Mydriasis | Miosis |
Ciliary | Relaxation for far vision | Contraction for near vision |