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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

parasympathetic nervous system

The part of the autonomic nervous system that controls rest and digestion.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
parasympatická nervová soustava
parasympaattinen hermostoparasympatikus
References in periodicals archive ?
The most common causes of gustatory sweating reported in literature are parotid surgery, traumatic lacerations to the parotid area, cervical sympathectomy, and cervical and radical neck dissection.[52],[53] Though rare, Frey's syndrome secondary to the maxillofacial trauma has been reported by several authors worldwide, with the condition being apparent from as early as 7 months to several years later postinjury.[45],[46],[53],[54],[55] Regeneration of postganglionic parasympathetic nerve fibers in the skin takes a certain amount of time, suggesting a latent period between intraoperative auriculotemporal nerve injury and the onset of Frey's syndrome.[56] In all the case reports, the commonly associated injury is the fracture of the condyle or subcondylar region.
This study indicates that morning exercise improves the quality of nighttime sleep (and healing) by increasing parasympathetic nerve activity.
The parasympathetic nerve supply aids in normal development of the salivary glands.
The results of the present study showed that the resting heart rate, Valsalva ratio, and standing to lying (S:L) ratio in obese subjects were significantly lower as compared to the control group which indicates decrease in parasympathetic nerve function.
This, in theory, could be subdivided into either hypoactivity of sympathetic nerve outflow or hyperactivity of parasympathetic nerve outflow.
Changes in values of the LLE, sympathetic nerve, and parasympathetic nerve are sketched in Figure 8.
In the peripheral nervous system, NPY participates in the regulation of autonomic nervous function by mediating vasoconstriction and increasing peripheral vascular resistance.[11] In addition, NPY can regulate the release of neurotransmitters by acting on the Y2 receptor on the presynaptic membrane of both sympathetic and parasympathetic nerve fibers, which may play a crucial role in HR regulation.[12] In the central nervous system, NPY is widely distributed in the cardiovascular regulation center.
It does have variations which will introduce possible non-linear effects of varying cardiac sympathetic and cardiac parasympathetic nerve activity on LF/HF, MSE parameters.
Parasympathetic nerve supply from superior salivatory nucleus via vidian nerve and sympathetic nerve supply from superior cervical chain.
Recently, we have developed a disposable heat- and steam-generating (HSG) sheet that safely and easily warms the periocular, abdominal, or lumbar skin and reported that it is able to reduce sympathetic and increase parasympathetic nerve activity [6, 7], as well as enhancing alpha-band electroencephalogram activity [8], leading to potential relaxation of somatic arousal.
This is because the "flashed" areas are where the parasympathetic nerve passes which is directly connected to the Meibomian gland, thus naturally ensuring the natural flow of lipid and reducing tear evaporation.

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