Sympathetic nervous system facts for kids
|Sympathetic nervous system|
|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.
Images for kids
The sympathetic nervous system extends from the thoracic to lumbar vertebrae and has connections with the thoracic, abdominal, and pelvic plexuses.
Sympathetic nervous system Facts for Kids. Kiddle Encyclopedia.