parasympathetic nervous system

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parasympathetic nervous system

n.
The part of the autonomic nervous system originating in the brainstem and the lower part of the spinal cord that, in general, inhibits or opposes the physiological effects of the sympathetic nervous system, as in tending to stimulate digestive secretions, slow the heart, constrict the pupils, and dilate blood vessels.

par·a·sym·pa·thet·ic nervous system

(păr′ə-sĭm′pə-thĕt′ĭk)
The part of the autonomic nervous system that tends to act in opposition to the sympathetic nervous system, as by slowing down the heart and dilating the blood vessels. It also regulates the function of many glands, such as those that produce tears and saliva.

parasympathetic nervous system

The part of the autonomic nervous system that controls rest and digestion.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.parasympathetic nervous system - originates 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
nervous system, systema nervosum - the sensory and control apparatus consisting of a network of nerve cells
ANS, autonomic nervous system - the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
Translations
parasympatická nervová soustava
parasympaattinen hermostoparasympatikus
References in periodicals archive ?
Both the sympathetic and parasympathetic divisions of the autonomic nervous system innervate this smooth muscle.
All children wore electrodes to collect data on heart and respiratory function, which showed the level of activation and reactivity of the sympathetic and parasympathetic divisions.

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