Pupil dilation and rapid heartbeat are the result of activation of which branch of the autonomic nervous system?

Question

Quizplus · Accepted Answer

Pupil dilation and rapid heartbeat are classic examples of the "fight or flight" response, which is triggered by the sympathetic nervous system. This system prepares the body for action and is responsible for many of the physical symptoms associated with stress or danger, such as increased heart rate, increased blood pressure, and sweating. The parasympathetic nervous system, on the other hand, is responsible for more restful and digestive functions, and would not be associated with these particular symptoms. The somatosensory cortex is another part of the nervous system but is not directly related to the autonomic regulation of the body. The peripheral nervous system is a broad category that includes both the sympathetic and parasympathetic branches, but it does not provide a specific answer to the question.

Pupil Dilation and Rapid Heartbeat Are the Result of Activation