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Sympathetic nervous system facts for kids

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Sympathetic nervous system
1501 Connections of the Sympathetic Nervous System.jpg
Schematic illustration showing the sympathetic nervous system with sympathetic cord and target organs.
Latin pars sympathica divisionis autonomici systematis nervosi

The Sympathetic nervous system is part of the autonomic nervous system. It becomes more active when you are stressed. It is a part of the "fight or flight" response. The sympathetic nervous system can increase heart rate; make bronchial passages wider; decrease motility (movement) of the large intestine; make blood vessels narrower; increase peristalsis in the esophagus; cause pupil dilation, piloerection (goose bumps) and perspiration (sweating); and raise blood pressure.

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