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nervous system
[nur-vuhs sis-tuhm]
noun
the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia.
a particular part of this system.
nervous system
noun
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
nervous system
The system of neurons and tissues that regulates the actions and responses of vertebrates and many invertebrates. The nervous system of vertebrates is a complex information-processing system that consists mainly of the brain, spinal cord, and peripheral and autonomic nerves. It receives chemical information from hormones in the circulating blood and can also regulate secretions of the endocrine system by the action of neurohormones. 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
Word History and Origins
Origin of nervous system1
Example Sentences
“It’s about paying attention to: ‘How does my nervous system feel with this person?
The research team said they identified that chronic pain is processed differently in the nervous system from the pain that comes from an injury or over-exertion.
But we don't know why some people have an oversensitive nervous system - and why it reacts to some things and not others.
They’re a tag team that uses the new film’s setup of two innocents trapped in a house with a violent stranger to hammer on our nervous system in two ways.
Icy cold plunges reset my nervous system — like a computer reboot — reminding me to release with every breath.
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