White matter is a component of the central nervous system, in the brain and superficial spinal cord, and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers. White matter tissue of the freshly cut brain appears pinkish white to the nak...
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http://en.wikipedia.org/wiki/White_matter
The part of the brain that contains myelinated nerve fibers. The white matter gets its color from myelin, the insulation covering nerve fibers.
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http://www.brainfacts.org/glossary
(from the article `nervous system, human`) ...The outer layer of the duplicate cerebral hemispheres is composed of a convoluted (wrinkled) outer layer of gray matter, called the cerebral ... The cerebral hemispheres consist of an inner core of myelinated nerve fibres, the white matter, and an outer cortex of gray matter. The cerebral .....
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http://www.britannica.com/eb/a-z/w/31
Part of the tissue that makes up the central nervous system of vertebrates. White matter consists mostly of nerve fibers that are enclosed in whitish myelin sheaths. Compare with gray matter.
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http://www.daviddarling.info/encyclopedia/W/white_matter.html
Areas in the brain and spinal cord that consist of myelinated nerve cells (neurones). Myelinated nerve cells are those in which their long thread-like extensions (axons) are covered in a layer of white, fatty, insulating material called myelin.
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http://www.encyclo.co.uk/local/20560
<anatomy> Brain tissue composed of myelin-coated nerve cell fibres. White matter carries information between the nerve cells in the brain and spinal cord. ... The inner portion of the cerebrum is composed of white matter. ... See: grey matter. ... (13 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
The part of the brain that contains myelinated nerve fibers. The white matter is white because it is the color of myelin, the insulation covering the nerve fibers. The white matter is as opposed to the gray matter (the cortex of the brain which contains nerve cell bodies).
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http://www.encyclo.co.uk/local/22236
Type: Term Definitions: 1. those regions of the brain and spinal cord that are largely or entirely composed of nerve fibers and contain few or no neuronal cell bodies or dendrites. Synonyms: alba, substantia alba, white substance
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http://www.medilexicon.com/medicaldictionary.php?t=53170
White matter: The part of the brain that contains myelinated nerve fibers. The white matter is white because it is the color of myelin, the insulation covering the nerve fibers. The white matter is as opposed to the gray matter (the cortex of the brain which contains nerve cell bodies).
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http://www.medterms.com/script/main/art.asp?articlekey=6018
The white matter is the tissue in the brain and spinal cord which is made up mostly of nerve fibers (the axons) which carry electrical impulses from one part of the nervous system to another. White matter contains few actual cell bodies, as opposed to gray matter where the cell bodies reside.
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http://www.nervous-system-diseases.com/medical-terms.html
[
n] - whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
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http://www.webdictionary.co.uk/definition.php?query=white%20matter
Lighter-colored tissue (compared to gray matter) that makes up much of the brain and spinal cord. White matter consists of numerous tracts, which are bundles of nerve cell axons and their myelin sheaths, and is found primarily in the outer portions of the spinal cord and the inner areas of the brain.
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
Areas of the brain rich in axons. The white appearance occurs due to the high density of myelin, the fatty insulation which covers the axons (like insulation on electrical cable).
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https://www.encyclo.co.uk/local/20737
substantia alba noun whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
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https://www.encyclo.co.uk/local/20974
the shiny layer underneath the cortex that consists mostly of axons with white myelin sheaths (in contrast to gray matter)
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https://www.encyclo.co.uk/local/22452
No exact match found.
