As Molly is walking across campus, a car swerves toward her. Her heart races and sweat breaks out as she jumps out of harm's way. This mobilization of energy is due to the action of Molly's:
A) lymphatic system.
B) endocrine system.
C) parasympathetic nervous system.
D) sympathetic nervous system.

Question

Quizplus · Accepted Answer

The mobilization of energy described in the scenario is a fight or flight response, which is controlled by the sympathetic nervous system. This system activates when the body believes it is under threat and triggers the release of adrenaline, which leads to an increase in heart rate, sweating, and other physical changes that prepare the body to either fight or flee. The other options, lymphatic system and endocrine system, are not directly involved in the fight or flight response, and the parasympathetic nervous system actually has the opposite effect and works to calm the body down.

As Molly Is Walking Across Campus, a Car Swerves Toward