Which branch of the ANS is dominant when a person perceives safety and is not stressed?

• A. Parasympathetic
• B. Sympathetic
• C. Enteric
• D. Somatic

Answer: (A)

When safety is perceived and stress is low, the body shifts into rest-and-digest mode handled by the parasympathetic branch of the autonomic nervous system. This branch slows the heart rate, lowers blood pressure, stimulates digestion and saliva production, and helps conserve and restore energy. It supports relaxation and recovery, which fits a calm, safe state. The sympathetic branch would take over only if danger or tension appears, gearing the body up for action. The enteric system governs gut activity and is influenced by the autonomic branches but doesn’t dominate in calm states, and the somatic system controls voluntary muscles, not automatic regulation. So the dominant system in this scenario is the parasympathetic nervous system.