Autonomic-nervous-system definition

ôtə-nŏmĭk
The definition of an autonomic nervous system is the bodily process that controls all involuntary actions such as breathing and digestion.

An example of an autonomic nervous system is someone's constant heartbeat and breathing while they sleep.

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The part of the vertebrate nervous system that regulates involuntary action, as of the intestines, heart, and glands, and that is divided into the sympathetic nervous system and the parasympathetic nervous system.
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The part of the nervous system that is responsible for control and regulation of the involuntary bodily functions, including those of the heart, blood vessels, visceral smooth muscles, and glands: it consists of the sympathetic system which, in general, stimulates the body to prepare for physical action or emergency, and the parasympathetic system which, in general, stimulates the opposite responses.
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The part of the vertebrate nervous system that regulates involuntary action, as of the intestines, heart, and glands, and that is divided into the sympathetic nervous system and the parasympathetic nervous system.
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The part of the vertebrate nervous system that regulates involuntary activity in the body by transmitting motor impulses to cardiac muscle, smooth muscle, and the glands. The muscular activity of the heart and of the circulatory, digestive, respiratory, and urogenital systems is controlled by the autonomic nervous system. The autonomic nervous system is divided into two parts: the sympathetic nervous system and the parasympathetic nervous system .
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(neuroanatomy) In humans and other vertebrates, the part of the nervous system that regulates the involuntary activity of the heart, intestines and glands. These activities include digestion, respiration, perspiration, metabolism, and the modulation of blood pressure.
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Other Word Forms

Noun

Singular:
autonomic-nervous-system
Plural:
autonomic nervous systems