Question:
Originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels. Prepares body to to react and expend energy in times of stress.
Author: CassidyAnswer:
Sympathetic nervous system
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Cassidy![Cassidy](https://s3-eu-west-2.amazonaws.com/memory-assets/profile-pictures/1003846-profile-picture-90290871-8620-4bb5-a2cf-32b7c7fab9b8.jpg)