nervous system

[nur-vuhs sis-tuhm]

noun

Anatomy, Zoology.

1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia.

2. a particular part of this system.

nervous system

noun

1. 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

1. 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.

2. See also autonomic nervous system central nervous system peripheral nervous system

nervous system

1. The system in the body that controls internal functions of the body and receives, interprets, and responds to stimuli. The nervous system is made up of the brain, the spinal cord, the nerves, and the sense organs, such as the eye and ear.

Word History and Origins

Origin of nervous system¹

First recorded in 1730–40

Example Sentences

According to SMA UK, the drug delivers a healthy copy of the affected gene to the body, but timing is critical because irreversible damage may have already occurred in the nervous system.

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Exposure to this element can lead to serious heart and nervous system issues, including arrhythmias and paralysis.

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However, scientists still have a limited understanding of how CBD actually interacts with the nervous system.

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The scientist leads a laboratory developing electronic devices which are implanted into a person's nervous system -- not just the brain, but also the spinal cord that transmits signals to the rest of the body.

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It's worth noting if you have underlying heart or respiratory conditions you should seek medical advice before trying to rebalance or stimulate your nervous system.

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