nervous system


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Related to nervous system: central nervous system, autonomic nervous system, peripheral nervous system, Nervous System Disorders

nervous system

n.
The system of cells, tissues, and organs that regulates the body's responses to internal and external stimuli. In vertebrates it consists of the brain, spinal cord, nerves, ganglia, and parts of the receptor and effector organs.

nervous system

n
(Physiology) the sensory and control apparatus of all multicellular animals above the level of sponges, consisting of a network of nerve cells. See neurone See also central nervous system

nerv′ous sys`tem



n.
the system of neurons, neurochemicals, and allied structures involved in receiving sensory stimuli, generating and coordinating responses, and controlling bodily activities: in vertebrates it includes the brain, spinal cord, nerves, and ganglia.
[1730–40]

nerv·ous system

(nûr′vəs)
The system of nerve cells and tissues that regulates the actions and responses of vertebrate and many invertebrate animals. The nervous system of vertebrates consists mainly of the brain, spinal cord, and nerves. The nervous systems of invertebrates vary from a simple network of nerves to a complex nerve network under the control of a primitive brain. See also autonomic nervous system, central nervous system, peripheral nervous system.

nervous system

The coordinated networks of neurons that control the body. See autonomic nervous system, central nervous system, peripheral nervous system.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nervous system - the sensory and control apparatus consisting of a network of nerve cellsnervous system - the sensory and control apparatus consisting of a network of nerve cells
body, organic structure, physical structure - the entire structure of an organism (an animal, plant, or human being); "he felt as if his whole body were on fire"
system - a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
nerve tissue, nervous tissue - tissue composed of neurons
ganglion - an encapsulated neural structure consisting of a collection of cell bodies or neurons
nerve cell, neuron - a cell that is specialized to conduct nerve impulses
fasciculus, fiber bundle, fibre bundle, fascicle - a bundle of fibers (especially nerve fibers)
central nervous system, CNS, systema nervosum centrale - the portion of the vertebrate nervous system consisting of the brain and spinal cord
neural net, neural network - any network of neurons or nuclei that function together to perform some function in the body
peripheral nervous system, systema nervosum periphericum - the section of the nervous system lying outside the brain and spinal cord
ANS, autonomic nervous system - the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
sympathetic nervous system - originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels
parasympathetic, 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
Translations
جِهاز عَصَبي
nervová soustava
centralnervesystemet
idegrendszer
taugakerfi
sistema nervoso
nervový systém
sinir sistemi

nervous system

nsistema m nervoso

nerve

(nəːv) noun
1. one of the cords which carry messages between all parts of the body and the brain.
2. courage. He must have needed a lot of nerve to do that; He lost his nerve.
3. rudeness. What a nerve!
verb
to force (oneself) to have enough courage (to do something). He nerved himself to climb the high tower.
nerves noun plural
the condition of being too easily excited or upset. She suffers from nerves.
ˈnervous adjective
1. of the nerves. the nervous system.
2. rather afraid. She was nervous about travelling by air; a nervous old lady.
ˈnervously adverb
ˈnervousness noun
ˈnervy adjective
excitable. The horse is rather nervy.
ˈnerviness noun
ˈnerve-racking adjective
causing great anxiety or nervousness. a nerve-racking experience.
nervous breakdown
a period of mental illness caused by a time of great strain.
nervous system
the brain, spinal cord and nerves of a person or animal.
get on someone's nerves
to irritate someone. Her behaviour really gets on my nerves.
References in classic literature ?
And is it quite incomprehensible that her nervous system should suffer accordingly, at a very critical period of her life?
The physiologist can discover that both depend upon the nervous system, and he may find that the movements which we call voluntary depend upon higher centres in the brain than those that are reflex.
Woodhouse's mind, or any wonderful change of his nervous system, but by the operation of the same system in another way.
His nervous system is highly sensitive, and there are signs that his way of life has already damaged it.
The shock to my already overstrained nervous system was terrible in the extreme, and with a superhuman effort I strove to break my awful bonds.
He imagined that Dorothea had been to see her, and that all this effect on her nervous system, which evidently involved some new turning towards himself, was due to the excitement of the new impressions which that visit had raised.
Not only was there no tendency to brain disease-- there was not even a perceptible derangement of the nervous system.
Inspector Jacks was a man who had succeeded in his profession chiefly on account of an average amount of natural astuteness, and also because he was one of those favored persons whose nervous system was a whole and perfect thing.
There was doubt in his mind that some note of the approaching blacks vibrating with fear had struck an answering chord in the nervous system of the panther, sending him slinking through the jungle, his tail between his legs.
Delvin had sent an urgent message to a physician at Edinburgh, famous for his skill in treating diseases of the nervous system.
To speak plainly, the man's nervous system is seriously deranged.
The digestive processes and their reaction upon the nervous system sap our strength and colour our minds.