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autonomic nervous system

That part of the nervous system that controls and regulates involuntary body functions (e.g. digestion, heart rate, and temperature regulation). It is divided up into the sympathetic and ...

autonomic nervous system

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A Dictionary of Zoology (5 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Science and technology, Life Sciences
Length:
48 words

... nervous system The part of the nervous system which controls involuntary activities such as homoeostasis . The autonomic nervous system is regulated by the hypothalamus and comprises two antagonistic parts, the parasympathetic and sympathetic nervous systems . See also central nervous system ; peripheral nervous system...

autonomic nervous system

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The Oxford Dictionary of Sports Science & Medicine (3 ed.)

Reference type:
Subject Reference
Current Version:
2007

... nervous system ( involuntary nervous system ; visceral nervous system ) A division of the peripheral nervous system that controls what are normally involuntary activities, such as heart rate, respiration, body core temperature, blood pressure, and urinary output. The autonomic nervous system includes the sympathetic nervous system and the parasympathetic nervous system , which innervate cardiac muscle, smooth muscles, and...

autonomic nervous system

autonomic nervous system n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015
Subject:
Science and technology, Psychology, Medicine and health, Psychiatry
Length:
59 words
Illustration(s):
1

... nervous system n. The largely self-regulating division of the nervous system of vertebrates, controlling the involuntary and vegetative cardiovascular, digestive, reproductive, and respiratory functions of the body, itself subdivided into the sympathetic nervous system and the parasympathetic nervous system (see illustration). Compare somatic nervous system . ANS abbrev. Autonomic nervous system. The parasympathetic and sympathetic systems...

autonomic nervous system

autonomic nervous system   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
28 words

... nervous system abbr. : ANS; those parts of the peripheral nervous system and central nervous system that govern homeostasis in vertebrates and are generally independent of voluntary...

autonomic nervous system

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A Dictionary of Biomedicine (2 ed.)

Reference type:
Subject Reference
Current Version:
2019

...autonomic nervous system The part of the peripheral nervous system that is not under conscious control, subdivided into the sympathetic and parasympathetic nervous systems . The autonomic system maintains homoeostasis by regulating heart rate, breathing, sweating,...

autonomic nervous system

autonomic nervous system n.   Quick reference

A Dictionary of Nursing (7 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Medicine and health
Length:
41 words

...autonomic nervous system [aw-tŏ- nom -ik] n. the part of the peripheral nervous system responsible for the control of involuntary muscles (e.g. heart, bladder, bowels) and hence bodily functions that are not consciously directed. See parasympathetic nervous system , sympathetic nervous system...

autonomic nervous system

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A Dictionary of Dentistry (2 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Medicine and health, Dentistry
Length:
34 words

... nervous system That part of the nervous system that controls and regulates involuntary body functions (e.g. digestion, heart rate, and temperature regulation). It is divided up into the sympathetic and parasympathetic nervous systems...

autonomic nervous system

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A Dictionary of Biology (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Life Sciences
Length:
103 words
Illustration(s):
1

...autonomic nervous system ( ANS ) The part of the vertebrate peripheral nervous system that supplies stimulation via motor nerves to the smooth and cardiac muscles and to the glands of the body. It is divided into the parasympathetic and the sympathetic nervous systems , which tend to work antagonistically on the same organs (see illustration). The activity of the ANS is controlled principally by the medulla oblongata , midbrain, and pons of the brainstem, which gives rise to the paired cranial nerves, and by the hypothalamus . The autonomic nervous...

autonomic nervous system

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World Encyclopedia

Reference type:
Subject Reference
Current Version:
2004
Subject:
Encyclopedias
Length:
63 words

... nervous system ( ANS ) Part of the body's nervous system that regulates the body's involuntary functions. It helps to regulate the body's internal environment by controlling the rate of heart beat, peristalsis (movements of food through the digestive tract) and sweating. This system is also part of an individual's emotional response, such as blushing and a quickened heartbeat. See also homeostasis ; involuntary...

autonomic nervous system

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Concise Medical Dictionary (10 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Medicine and health, Clinical Medicine
Length:
147 words

... nervous system the part of the peripheral nervous system responsible for the control of involuntary muscles (e.g. the heart, bladder, bowels) and hence those bodily functions that are not consciously directed, including regular beating of the heart, intestinal movements, sweating, salivation, etc. The autonomic system is subdivided into sympathetic and parasympathetic nervous systems . Sympathetic nerves lead from the middle section of the spinal cord and parasympathetic nerves from the brain and lower spinal cord. The heart, smooth muscles, and...

autonomic nervous system

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The Oxford Companion to the Mind (2 ed.)

Reference type:
Subject Reference
Current Version:
2006
Subject:
Science and technology, Psychology, Philosophy
Length:
124 words

... nervous system . Also known as the involuntary nervous system, it involves the smooth (rather than the striated) muscles, and is essentially the regulatory mechanisms of digestion, respiration, circulation of the blood, and so on. These processes are not normally under voluntary control, though they may be brought under control by conditioning or by biofeedback . The fact that much behaviour is involuntary and unconscious raises such questions as: why is some behaviour voluntary , and under conscious control? It seems that high rates of information...

autonomic nervous system

autonomic nervous system   Reference library

The Oxford Companion to the Body

Reference type:
Subject Reference
Current Version:
2003
Subject:
Science and technology, Life Sciences
Length:
2,829 words
Illustration(s):
1

...of substances from glandular cells. The ANS and its relation to the central nervous system Anatomically, the brain and spinal cord constitute the central nervous system (CNS) and the nerve pathways outside of the skull and vertebral column are the peripheral nervous system . But, on functional grounds, the nervous system is also divided into the somatic and autonomic systems. Each of these has pathways both within the central nervous system and outside it. The somatic system has (sensory) input from muscles, joints, and body surface, and (motor)...

autonomic nervous system

autonomic nervous system   Reference library

The New Oxford Dictionary for Scientific Writers and Editors (2 ed.)

Reference type:
Subject Reference
Current Version:
2009

... nervous system Abbrev.: ...

autonomic nervous system

autonomic nervous system noun   Quick reference

New Oxford American Dictionary (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
51 words
autonomic nervous system

autonomic nervous system noun   Quick reference

Oxford Dictionary of English (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
56 words
autonomic nervous system

autonomic nervous system noun   Reference library

The Canadian Oxford Dictionary (2 ed.)

Reference type:
English Dictionary
Current Version:
2005
Subject:
English Dictionaries and Thesauri
Length:
24 words
autonomic nervous system

autonomic nervous system  

Reference type:
Overview Page
That part of the nervous system that controls and regulates involuntary body functions (e.g. digestion, heart rate, and temperature regulation). It is divided up into the sympathetic and ...
somatic nervous system

somatic nervous system  

The division of the nervous system devoted to sensation from external sense organs and control of skeletal muscles. Compare autonomic nervous system. SNS abbrev.
autonomic arousal disorder

autonomic arousal disorder  

A disorder characterized by persistent or recurrent signs and symptoms mediated by the autonomic nervous system, excluding pain but including palpitation, hyperventilation, or nausea. It is not ...
enteric nervous system

enteric nervous system  

Reference type:
Overview Page
A complex of neurones within the gut wall (the myenteric and submucosal plexuses) that regulates control of gut motility, fluid, and electrolyte transport and control of intestinal blood flow. ...

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