Which system calms the body and conserves energy?

• A. Central Nervous System
• B. Parasympathetic Nervous System
• C. Somatic Nervous System
• D. Sympathetic Nervous System

Answer: (B)

Parasympathetic nervous system promotes rest and digest functions, calming the body and conserving energy. It slows the heart rate, lowers blood pressure, and stimulates digestion, supporting recovery and maintenance after activities. This contrasts with the sympathetic nervous system, which gears the body up for action in stressful or demanding situations. The central nervous system (brain and spinal cord) coordinates and processes information, while the somatic nervous system handles voluntary control of muscles.