| 释义 |
grey matter
grey matter or gray mattern1. (Anatomy) the greyish tissue of the brain and spinal cord, containing nerve cell bodies, dendrites, and bare (unmyelinated) axons. Technical name: substantia grisea Compare white matter2. informal brains or intellectThesaurus| Noun | 1. |  grey matter - greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neuronsgray matter, gray substance, grey substance, substantia griseanerve tissue, nervous tissue - tissue composed of neuronsneuropil, neuropile - the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embeddedcerebral cortex, cerebral mantle, cortex, pallium - the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum |
Translationsgrey matter
gray matterIntelligence. In medicine, gray matter is tissue in the brain and spinal cord. Come on in—we could use your gray matter as we try to solve this problem.See also: gray, mattergray matterFig. intelligence; brains; power of thought. Use your gray matter and think what will happen if the committee resigns. Surely they'll come up with an acceptable solution if they use some gray matter.See also: gray, mattergray matterBrains, intellect, as in If you'd only use your gray matter, you'd see the answer in a minute. This expression refers to actual brain tissue that is gray in color. Agatha Christie's fictional detective, Hercule Poirot, constantly alludes to using the little gray cells for solving a crime. [Late 1800s] See also: gray, matterˈgrey matter (informal) intelligence or mental powers: Mark hasn’t got much grey matter, but he tries hard.See also: grey, mattergrey matter
grey matter the greyish tissue of the brain and spinal cord, containing nerve cell bodies, dendrites, and bare (unmyelinated) axons grey matter
gray mat·'ter [TA] those regions of the brain and spinal cord that are made up primarily of the cell bodies and dendrites of nerve cells rather than myelinated axons. Synonym(s): gray substance [TA], substantia grisea [TA], substantia cinereaNonmyelinated cells and circuitry that comprise the ‘central processing unit’ of the CNS and spinal cord; the thinking part of the brain, which is composed of neuronal cell bodies, initial axon segments, dendritic processes, and arborizations, glia—neuroglial cells—capillaries and vascular support; gray matter is so named because it appears grayish; brain gray matter is peripheral; spinal cord gray matter is centralgrey matter That part of the CENTRAL NERVOUS SYSTEM consisting mainly of nerve cell bodies. The grey matter of the brain includes the outer layer (the cortex) and a number of centrally placed masses called nuclei. In the spinal cord, the grey matter occupies the central axis. The white matter consists of nerve fibres—axons of the nerve cells.grey matter the material from the CENTRAL NERVOUS SYSTEM of vertebrates containing the nerve cell bodies which give the material a grey colour as distinct from the white colour of the FIBRES (compare WHITE MATTER). Grey matter also contains the DENDRITES of the nerve cells (with no myelin sheath), blood vessels, and glial cells which have a supportive function. Grey matter of the spinal cord is internally arranged in the form of an ‘H’ shape in cross-section, unlike the brain, where grey matter is external. Coordination occurs in the grey matter of the CNS.grey matter
Synonyms for grey matternoun greyish nervous tissue containing cell bodies as well as fibersSynonyms- gray matter
- gray substance
- grey substance
- substantia grisea
Related Words- nerve tissue
- nervous tissue
- neuropil
- neuropile
- cerebral cortex
- cerebral mantle
- cortex
- pallium
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