Question

Joe was hiking, and a rattlesnake in the path surprised him. his _____ nervous system was put into action as his heart accelerated, sweating increased, and pupils dilated.

Answer 1

The sympathetic nervous system was put into action. This system  prepares us for action . This is the system that mediates the hormonal stress response. The fighting and flight behaviors are mediated by the sympathetic system. It increases the frequency of heart beats, dilates the bronchi and pupils. Stimulates the adrenal glands The excessive sweating or hyperhidrosis hands, arms or face is associated with a hyper stimulation of the sympathetic system.

Answer 2

Answer: His SYMPATHETIC NERVOUS SYSTEM nervous system was put into action.

Explanation: The sympathetic nervous system is defined as the part of the nervous system that regulates the involuntary activity of the heart, intestines and glands. It is responsible for raising blood pressure and heart rate, constricting blood vessels and dilates the pupils when under stress.

Clearly, in the question, Joe was under stress, so his sympathetic nervous system was called into action.