Pharmacology Nursing: Sympathetic vs Parasympathetic Effects on Body Autonomic Nervous System: Sympathetic vs Parasympathetic The sympathetic nervous system prepares the body for the “fight or flight” response during any potential danger. On the other hand, the parasympathetic nervous system inhibits the body from overworking and restores the body to a calm and composed … [Read more...] about Pharmacology Nursing: Sympathetic vs Parasympathetic Effects on Body