The sympathetic nervous system is associated with which response?

• A. Rest and Digest
• B. Fight or Flight
• C. Sexual Arousal
• D. Homeostasis

Answer: (B)

The main idea here is how the autonomic nervous system prepares the body for rapid action in response to stress. The sympathetic division is the mobilizing side of this system, driving the classic fight or flight response. It increases heart rate and the force of contraction, opens airways, dilates pupils, redirects blood to muscles, and slows digestion to conserve energy for immediate activity. This set of rapid physiological changes is what lets you act quickly in danger or during intense exertion.

Rest and Digest reflects the parasympathetic division, which promotes relaxation, energy conservation, and digestion—not the quick, action-oriented state of the sympathetic system. Sexual arousal can involve autonomic control with both branches, but the typical association for the sympathetic system is the fight or flight response. Homeostasis is the general maintenance of stable internal conditions that both autonomic branches help regulate, not the specific mobilizing response described here.