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central nervous system

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afferent

afferent  

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Carrying (nerve impulses, blood, etc.) from the outer regions of a body or organ towards its centre. The term is usually applied to types of nerve fibres or blood vessels. Compare efferent.
ataxia

ataxia  

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Lack of coordination and unsteadiness of gait caused by loss of postural control, usually due to a lesion in the cerebellum. See ataxia telangiectasia.
autonomic nervous system

autonomic nervous system  

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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 ...
barbiturate

barbiturate  

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A class of drugs that depress the activity of the central nervous system and have sedative and hypnotic effects. Largely superseded by benzodiazepines.
benzodiazepine

benzodiazepine  

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pl. n. a group of pharmacologically active compounds used as anxiolytics and hypnotics. The group includes chlordiazepoxide, diazepam, oxazepam, and temazepam.
brain

brain  

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n. the enlarged and highly developed mass of nervous tissue that forms the upper end of the central nervous system (see illustration). The average adult human brain weighs about 1400 g (approximately ...
brainstem

brainstem  

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n. the enlarged extension upwards within the skull of the spinal cord, consisting of the medulla oblongata, the pons, and the midbrain. The pons and medulla are together known as the bulb, or bulbar ...
catecholamine

catecholamine  

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(kat-ĕ-kol-ă-meenz)a group of physiologically important substances, including adrenaline, noradrenaline, and dopamine, with different roles (mainly as neurotransmitters) in the functioning of the ...
central nervous system

central nervous system   Reference library

The Oxford Companion to the Body

Reference type:
Subject Reference
Current Version:
2003
Subject:
Science and technology, Life Sciences
Length:
1,476 words

The central nervous system (CNS) consists of the brain (inside the skull) and spinal cord (inside the vertebral column), which

central nervous system

central 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:
73 words

abbr.: CNS; the part of the nervous system of an animal that contains a high concentration of cell bodies

central nervous system

central nervous system   Quick reference

World Encyclopedia

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

Term embracing the brain and spinal cord, as distinct from the peripheral nervous system. The CNS co-ordinates all nervous

central nervous system

central nervous system   Quick reference

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

Reference type:
Subject Reference
Current Version:
2007
The main mass of nervous tissue, lying between sensory receptors and effectors, which acts as an integrating centre. The CNS comprises the brain and spinal cord and consists of more than ... More
cerebrospinal fluid

cerebrospinal fluid  

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(CSF)the clear watery fluid that surrounds and protects the brain and spinal cord. It is contained in the subarachnoid space and circulates in the ventricles of the brain and in the central canal of ...
Charcot-Marie-Tooth disease

Charcot-Marie-Tooth disease  

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(peroneal muscular atrophy) a group of inherited diseases of the peripheral nerves, also known as hereditary sensorimotor neuropathy, causing a gradually progressive weakness and wasting of the ...
chloral hydrate

chloral hydrate  

(klor-ăl hy-drayt)a sedative and hypnotic drug formerly widely used (as a syrup) to induce sleep, mainly in children and the elderly; its derivative chloral betaine (Welldorm) is formulated as ...
CNS

CNS   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:
6 words

abbr. for central nervous system.

collagen

collagen  

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n. a protein that is the principal constituent of white fibrous connective tissue (as occurs in tendons). Collagen is also found in skin, bone, cartilage, and ligaments. It is relatively inelastic ...
coordination

coordination  

(in animal physiology)The processes involved in the reception of sensory information, the integration of that information, and the subsequent response of the organism. Coordination is controlled by ...
defecation

defecation  

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n. a bowel movement in which faeces are evacuated through the rectum and anus. The amount and composition of the food eaten determine to a large degree the bulk of the faeces, and the transit time ...
depressant drug

depressant drug  

Any drug that reduces or tends to reduce the function of a system or organ of the body, especially a drug that reduces or slows down the activity of the central nervous system and that in high ...

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