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 ?
Craniosacral therapy (CST) has been shown in the literature to improve heart rate variability (HRV), to increase the activity of the parasympathetic nervous system, and to improve the sympathovagal response in patients experiencing subjective discomforts.
As I'll discuss in a moment, there are "killer app" routines that have a direct impact on activating the parasympathetic nervous system and immediately get leaders out of chronic fight-or-flight.
Eupnea replenishes the supply of oxygen to the brain, stimulates the parasympathetic nervous system, and reconnects the body with the mind.
The sympathetic nervous system releases norepinephrine and epinephrine, which are responsible for the cascade of reactions associated with stress, whereas the parasympathetic nervous system releases acetylcholine.
Exercise one of fastest to revive winter-body a friend walk of a coffee "We need to promote the healthy functioning of our parasympathetic nervous system. This is achieved via decent sleep (7-9 hours a night), relaxation, smooth and spacious breathing, time in nature, gentle movement, mindfulness and meditation."
The 16 hours of fasting is a perfect opportunity to rest your digestive system, allow your liver to detoxify and provide an environment to activate your parasympathetic nervous system with prayer and meditation.
MacKenzie, who is the co-author of three sports-related books including Unbreakable Runner, teaches his clients how to use nasal breathing to optimise their athletic performance and be more"metabolically efficient." Breathing through the nose activates the parasympathetic nervous system, which helps people remain calm and alert, improves their peripheral vision and encourages them to maintain better posture and mechanics, which results in fewer injuries, Mackenzie said.
Even brief meditation triggers the relaxation response, an aspect of the parasympathetic nervous system, which boosts well-being, cognition, immunity and more.
In contrast, the postganglionic fibers of the parasympathetic nervous system regulate the HR rapidly via the release of acetylcholine and the subsequent signal cascade.
Recent data from a study using pharmacological blockade of the sympathetic and parasympathetic nervous system [3] suggest that even though sympathetic nervous system activity increases as compared to normoxic state, parasympathetic withdrawal rather than sympathetic activation seems to be the cause of the increase in heart rate observed in healthy humans subjected to hyperbaric hypoxia.
The efferent autonomic signals are transmitted to various organs of the body through two major subdivisions, Parasympathetic Nervous System [PSNS] and Sympathetic Nervous System [SNS].

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