| 单词 | systema nervosum |
| 释义 | systema nervosum (once / 11819311 pages) n WORD FAMILY systema nervosum n the sensory and control apparatus consisting of a network of nerve cells Syn|Hypo|Hyper nervous system sympathetic nervous system originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels parasympathetic, parasympathetic nervous systemoriginates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils; dilates blood vessels system a group of physiologically or anatomically related organs or parts |
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