| 词汇 | white-matter |
| 释义 | white matter noun[ U ] anatomy specializeduk /ˈwaɪt ˌmæt.ər/ us /ˈwaɪt ˌmæt̬.ɚ/ the pale tissue containing nerve fibres (= structures like threads) found in the brain and spinal cord白质（见于大脑和脊髓的淡色组织，内含丝状的神经纤维结构） Compare grey matter Substances & structures in the body abductor accessorius ACL actin adductor fundus funiculus fusiform glomerular glomerulus myosin navicular neuroendocrine neurohormonal neurohormone tendinis tendinous tendinum tendo tensor You can also find related words, phrases, and synonyms in the topics: The brain & nervous system The white matter is made up of special cells that carry messages between the cells in the gray matter. Examples of white matterwhite matter The cerebellar whitematter volume showed an unexpected and striking abnormality. Periventricular brain structures and whitematter tracts are particularly vulnerable to damage. To date, only two such structures have been identified: the parieto-temporo-occipital cortical junction and the ventromesial frontal whitematter. Premature delivery can interrupt this process and perturb the structure of the whitematter. Increased microglial activation and protein nitration in whitematter of the aging monkey. There did not appear to be significant spread of current into underlying whitematter. In pathological terms, the authors described a striking encephalitis with an affinity for white matter areas including internal and external capsules and cerebellar peduncles. Both whitematter and grey matter volumes were greater on the left compared to the right for faster learners. In most cases, the inflammatory foci were confined to grey matter, there being minimal involvement of whitematter and paraventricular regions. Here we show that oligodendrocytes harbor peroxisomes whose function are essential for maintaining whitematter tracts throughout adult life. Thus, cortical hyperallometry is substantial even when calculations exclude primates and whitematter. Volumetric analysis was used to measure grey matter, whitematter, and cerebrospinal fluid. This abnormal brain growth appears to be due primarily to excessive enlargement cerebral whitematter and cerebral grey matter. Aspiration was used to selectively ablate only the lateral whitematter tracts and a minimal portion of the dorsal and ventral gray matter. The frontal lobe whitematter volume was significantly larger than normal and the frontal lobe gray matter showed an overall enlargement in autism. See all examples of white matter These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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