You are walking after dark. A sudden noise frightens you. Your heart pounds, your pulse races, and your breathing rate increases. These responses are due to your ____.
A) parasympathetic nervous system
B) sympathetic nervous system
C) somatic nervous system
D) immune system

Question

Quizplus · Accepted Answer

The sympathetic nervous system is responsible for the "fight or flight" response, which includes the physical responses described in the scenario. The parasympathetic nervous system is responsible for the opposite response of calming the body down. The somatic nervous system is responsible for voluntary movements of the skeletal muscles. The immune system defends against pathogens and foreign substances.

You Are Walking After Dark