Single Biggest Cancer Dictionary in the World
What is sympathetic nervous system?
Pronunciation: /ˌsɪmpəˈθɛtɪk ˈnərvəs ˈsɪstəm/
sympathetic nervous system
Definition
The part of the nervous system that increases heart rate, blood pressure, breathing rate, and pupil size. It also causes blood vessels to narrow and decreases digestive juices.