Question

Which of the following two systems are opposite in action to each other?

• A. Nervous - Sensory
• B. Nervous - Endocrine
• C. Sensory - Endocrine
• D. Parasympathetic - Sympathetic

Answer 1

The correct option is D Parasympathetic - Sympathetic

Sympathetic and parasympathetic divisions function in opposition to each other.

This opposition is better termed complementary in nature rather than antagonistic. The sympathetic division functions in actions requiring quick responses. The parasympathetic division functions with actions that do not require immediate reaction. The sympathetic system is often considered the "fight or flight" system, while the parasympathetic system is often considered the "rest and digest" or "feed and breed" system.