Activation of the nervous system, a division of the autonomic nervous system, calms the body after an emergency has ended and directs the body to store energy for future emergencies.

Parasympathetic

Explanation:

The parasympathetic autonomic nervous system has nerve fibers that originate from sacral and cranial segments of the spinal cord. This branch of brain has a function in calming the body in situations of emergency. This system is also responsible for conserving the energy of the body by slowing down the heart rate, and relaxing the sphincter muscles. This way it conserves the energy for future emergencies.

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