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PARASYMPATHETIC
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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
Synonyms:
parasympathetic; parasympathetic nervous system
Classified under:
Hypernyms ("parasympathetic" is a kind of...):
nervous system; systema nervosum (the sensory and control apparatus consisting of a network of nerve cells)
Holonyms ("parasympathetic" is a part of...):
ANS; autonomic nervous system (the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands)
Derivation:
parasympathetic (of or relating to the parasympathetic nervous system)
II. (adjective)
Sense 1
Meaning:
Of or relating to the parasympathetic nervous system
Classified under:
Relational adjectives (pertainyms)
Pertainym:
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)
Derivation:
parasympathetic (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)
Context examples:
A benign or malignant extra-adrenal parasympathetic paraganglioma that arises from paraganglia adjacent to the base of the heart and great vessels.
(Aorticopulmonary Paraganglioma, NCI Thesaurus)
Any component of the sympathetic or parasympathetic nervous system.
(Autonomic Nervous System Part, NCI Thesaurus)
Ipratropium antagonizes the actions of acetylcholine at parasympathetic, postganglionic, effector-cell junctions.
(Ipratropium Bromide, NCI Thesaurus)
Ipratropium antagonizes the actions of acetylcholine at parasympathetic postganglionic effector cell junctions.
(Ipratropium, NCI Thesaurus)
Pathologic features include degeneration of the ciliary ganglion and postganglionic parasympathetic fibers that innervate the pupillary constrictor muscle.
(Holmes-Adie Syndrome, NLM, Medical Subject Headings)
The cell bodies of the parasympathetic preganglionic fibers are in brain stem nuclei and in the sacral spinal cord.
(Parasympathetic nervous system, NLM, Medical Subject Headings)
A synthetic pyridinylmethylene-diacetate ester derivative stimulant laxative, Bisacodyl acts with a parasympathetic effect directly on mucosal sensory nerves, increasing peristaltic contractions.
(Bisacodyl, NCI Thesaurus)
The enteric, parasympathetic, and sympathetic nervous systems taken together.
(Autonomic nervous system, NLM, Medical Subject Headings)
Atropine functions as a sympathetic, competitive antagonist of muscarinic cholinergic receptors, thereby abolishing the effects of parasympathetic stimulation.
(Atropine, NCI Thesaurus)
Upon oral administration, hyoscine butylbromide binds to and blocks muscarinic receptors located on postganglionic parasympathetic nerve endings and on smooth muscle cells.
(Butylscopolamine Bromide, NCI Thesaurus)
