Which statement best describes the function of the parasympathetic nervous system?

Which statement best describes the function of the parasympathetic nervous system?

• A. Rest-and-Digest
• B. Fight-or-Flight
• C. Stress Response
• D. Excitation

Answer: (A)

The parasympathetic system promotes calm, energy conservation, and maintenance activities — the rest-and-digest state. It helps slow the heart rate, enhances digestion and secretions, and supports activities like urination and defecation, allowing the body to recover after stress. This is opposite to the fight-or-flight response driven by the sympathetic system, which prepares the body for action. The other options describe activation and stress responses rather than the calming, restorative role of the parasympathetic system.

The parasympathetic system promotes calm, energy conservation, and maintenance activities — the rest-and-digest state. It helps slow the heart rate, enhances digestion and secretions, and supports activities like urination and defecation, allowing the body to recover after stress. This is opposite to the fight-or-flight response driven by the sympathetic system, which prepares the body for action. The other options describe activation and stress responses rather than the calming, restorative role of the parasympathetic system.