Question

As you walk home from the movie theater, you think that you hear footsteps behind you. Suddenly, you notice that your heart rate has increased and you are breathing quickly. What portion of the nervous system has been activated

Answer 1

SNS and the PNS

Step-by-step explanation:

Your heart rate is controlled by two branches of the involuntary nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases hormones (catecholamines; epinephrine and norepinephrine) to accelerate the heart rate. These are your fight or flight response.

Hope I helped.

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