| 单词 | autonomic nervous system |
| 释义 | autonomic nervous system in British Englishnoun the section of the nervous system of vertebrates that controls the involuntary actions of the smooth muscles, heart, and glands. It has two divisions: the sympathetic and the parasympathetic Compare somatic nervous systemautonomic nervous system in American English the part of the nervous system that is responsible for control and regulation of the involuntary bodily functions, including those of the heart, blood vessels, visceral smooth muscles, and glands: it consists of the sympathetic system which, in general,stimulates the body to prepare for physical action or emergency, and the parasympathetic system which, in general, stimulates the opposite responses see also central nervous system |
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