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Definition of Autonomic nervous system

Babylon English

part of the nervous system which controls involuntary bodily functions
Autonomic nervous system Definition from Language, Idioms & Slang Dictionaries & Glossaries
WordNet 2.0

Noun
1. the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
(synonym) ANS
(hypernym) neural structure
(part-holonym) nervous system, systema nervosum
(part-meronym) autonomic ganglion
Autonomic nervous system Definition from Medicine Dictionaries & Glossaries
Aging Hearts and Arteries Glossary
That part of the nervous system that controls involuntary muscles, such as the heart. It uses chemicals, such as catecholamines, to send messages from the brain to the heart. With age, the body’s response to cathecholamines withers.
Source: National Institute on Aging
Muscle Pain
those efferent parts of the nervous system that are not under voluntary control. It consists of two main parts, the sympathetic and the parasympathetic nervous system.
MS glossary
The part of the nervous system that regulates involuntary vital functions, including the activity of the cardiac (heart) muscle, smooth muscles (e.g., of the gut), and glands. The autonomic nervous system has two divisions: the sympathetic nervous system accelerates heart rate, constricts blood vessels, and raises blood pressure; the parasympathetic nervous system slows heart rate, increases intestinal and gland activity, and relaxes sphincter muscles.
National MS Society at www.nationalmssociety.org
Demos Medical Publishing at www.demosmedpub.com
Dictionary of Medicine (Shahram)
Part of the nervous system once thought functionally independent of the brain. The autonomic nervous system regulates key functions including the activity of the cardiac (heart) muscle, smooth muscles (e.g., of the gut), and glands. The autonomic nervous system has two divisions: (1) the sympathetic nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure; and (2) the parasympathetic nervous system slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles.
adjective
which governs itself independently

autonomic nervous system = nervous system formed of ganglia linked to the spinal column, which regulates the automatic functioning of the main organs of the body, such as the heart and lungs, and which works when a person is asleep or even unconscious
see also PARASYMPATHETIC SYSTEM, SYMPATHETIC SYSTEM
Aids Glossary
the branch of the nervous system that primarily controls non-voluntary bodily processes such as heartbeat, intestinal motility and non-endocrine gland secretion. The ANS has two branches, sympathetic and parasympathetic.
Aegis
Autonomic nervous system Definition from Entertainment & Music Dictionaries & Glossaries
English to Federation-Standard Golic Vulcan
sa'a-wel-torektra
Autonomic nervous system Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
The autonomic nervous system (ANS or visceral nervous system or involuntary nervous system) is the part of the peripheral nervous system  that acts as a control system that functions largely below the level of consciousness to control visceral functions., including heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, micturition (urination), sexual arousal, breathing and swallowing. Most autonomous functions are involuntary but they can often work in conjunction with the somatic nervous system which gives voluntary control.

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