Lexic.us

Definition of Parasympathetic nervous system

1. Noun. 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.

Definition of Parasympathetic nervous system

1. Noun. (neuroanatomy) One of the divisions of the autonomic nervous system, based between the brain and the spinal cord, that slows the heart and relaxes muscles. ¹

¹ Source: wiktionary.com

Medical Definition of Parasympathetic nervous system

1. One of the two divisions of the vertebrate autonomic nervous sytem. Parasympathetic nerves emerge cranially as pre ganglionic fibres from oculomotor, facial, glossopharyngeal and vagus and from the sacral region of the spinal cord. most neurons are cholinergic and responses are mediated by muscarinic receptors. The parasympathetic system innervates, for example: salivary glands, thoracic and abdominal viscera, bladder and genitalia. Compare:. Sympathetic nervous system. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Parasympathetic Nervous System

Literary usage of Parasympathetic nervous system

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Lifelong Passion: Nicholas and Alexandra: Their Own Story by Andrei Maylunas (2005)
"In the present study, however, we examined the effect on insulin release at the islet level of various agents affecting the parasympathetic nervous system, ..."

2. Handbook of Severe Disability: A Text for Rehabilitation Counselors, Other edited by Walter C. Stolov, Michael R. Clowers (2000)
"3-12) The parasympathetic nervous system has basically two parts: the cranial part, which leaves the central nervous system with cranial nerves III, VII, ..."

3. Merging with Śiva: Hinduism's Contemporary Metaphysics = Śiva Sāyujy by Subramuniya, Satguru Sivaya Subramuniyaswami, Master Subramuniya (2002)
"... cord that in general inhibits or opposes the physiological effects of the parasympathetic nervous system, as in tending to reduce digestive secretions, ..."

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