| Organ | Sympathetic Stimulation | Parasympathetic Stimulation |
| Heart |
Increased heart rate beta1 (& beta2) |
Decreased heart rate |
| Increased force of contraction beta1 (& beta2) |
Decreased force of contraction |
| Increased conduction velocity |
Decreased conduction velocity |
| Arteries |
Constriction (alpha1) |
Dilation |
| Dilation (beta2) |
| Veins |
Constriction (alpha1) |
|
| Dilation (beta2) |
| Lungs |
Bronchial muscle relaxation (beta2) |
Bronchial muscle contraction |
| Increased bronchial gland secretions |
Gastro- intestinal tract |
Decreased motility (beta2) |
Increased motility |
| Contraction of sphincters (alpha) |
Relaxation of sphincters |
| Liver |
Glycogenolysis (beta2 & alpha) |
Glycogen synthesis |
| Gluconeogenesis (beta2 & alpha) |
| Lipolysis (beta2 & alpha) |
| Kidney |
Renin secretion (beta2) |
|
| Bladder |
Detrusor relaxation (beta2) |
Detrusor contraction |
| Contraction of sphincter (alpha) |
Relaxation of sphincter |
| Uterus |
Contraction of pregnant uterus (alpha) |
|
| Relaxation of pregnant and non-pregnant uterus (beta2) |
| Eye |
Dilates pupil (alpha) |
Constricts pupil |
| Increased lacrimal gland secretions |
| Submandibular & parotid glands |
Viscous salivary secretions (alpha) |
Watery salivary secretions |