Micrograph showing white matter with its characteristic fine meshwork-like appearance (left of image – lighter shade of pink) and grey matter, with the characteristic neuronal cell bodies (right of image – dark shade of pink). HPS stain.
Human brain right dissected lateral view, showing grey matter (the darker outer parts), and white matter (the inner and prominently whiter parts).
White matter structure of human brain (taken by MRI).
White matter refers to areas of the central nervous system (CNS) that are mainly made up of myelinated axons, also called tracts.[1] Long thought to be passive tissue, white matter affects learning and brain functions, modulating the distribution of action potentials, acting as a relay and coordinating communication between different brain regions.[2]
White matter is named for its relatively light appearance resulting from the lipid content of myelin. However, the tissue of the freshly cut brain appears pinkish-white to the naked eye because myelin is composed largely of lipid tissue veined with capillaries. Its white color in prepared specimens is due to its usual preservation in formaldehyde.
^Blumenfeld, Hal (2010). Neuroanatomy through clinical cases (2nd ed.). Sunderland, Mass.: Sinauer Associates. p. 21. ISBN 978-0878936137. Areas of the CNS made up mainly of myelinated axons are called white matter.
Whitematter refers to areas of the central nervous system (CNS) that are mainly made up of myelinated axons, also called tracts. Long thought to be passive...
White Lives Matter (WLM) is a white supremacist slogan that emerged in 2015 as a reaction to the Black Lives Matter social justice movement that started...
Leukoaraiosis is a particular abnormal change in appearance of whitematter near the lateral ventricles. It is often seen in aged individuals, but sometimes...
Grey matter is distinguished from whitematter in that it contains numerous cell bodies and relatively few myelinated axons, while whitematter contains...
In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be...
Leukoencephalopathy with vanishing whitematter (VWM disease) is an autosomal recessive neurological disease. The cause of the disease are mutations in...
which scattered lesions occur over a widespread area in whitematter tracts as well as grey matter. DAI is one of the most common and devastating types of...
Whitematter dissection refers to a special anatomical technique able to reveal the subcortical organization of whitematter fibers in the human or animal...
What is dark matter? How was it generated? (more unsolved problems in physics) In astronomy, dark matter is a hypothetical form of matter that appears...
peaceful. The popularity of Black Lives Matter has shifted over time, largely due to changing perceptions among white Americans. In 2020, 67% of adults in...
leukomalacia (PVL) is a form of white-matter brain injury, characterized by the necrosis (more often coagulation) of whitematter near the lateral ventricles...
investigation of whitematter more closely than traditional MRI. Over 300 DTI imaging studies have been published examining whitematter abnormalities in...
characterized by degeneration of the whitematter in the brain. The word leukodystrophy comes from the Greek roots leuko, "white", dys, "abnormal" and troph,...
hemisphere has an inner core composed of whitematter, and an outer surface – the cerebral cortex – composed of grey matter. The cortex has an outer layer, the...
relativity, a white hole is a hypothetical region of spacetime and singularity that cannot be entered from the outside, although energy-matter, light and...
constituting gray matter, while internally there is more whitematter that form tracts and commissures. Apart from cortical gray matter there is also subcortical...
social issues such as transgender people, feminism, and Black Lives Matter. White described feeling gender dysphoria from a young age, saying that "my...
cord contains neuronal whitematter tracts containing sensory and motor axons. Internal to this peripheral region is the grey matter, which contains the...
The corticospinal tract is a whitematter motor pathway starting at the cerebral cortex that terminates on lower motor neurons and interneurons in the...
(leukodystrophy-like diseases) is a term that describes all of the brain whitematter diseases, whether their molecular cause is known or unknown. It can refer...
WML may stand for: What's My Line?, a game show Whitematter lesion, a lesion of the whitematter Wireless Markup Language, markup used for mobile phones...
or centrum ovale is the central area of whitematter found underneath the cerebral cortex. The whitematter, located in each hemisphere between the cerebral...
which can then be compared to disease states. Pathways through cerebral whitematter can be charted by histological dissection and staining, by degeneration...
hemispheres has an outer layer of grey matter, the cerebral cortex, that is supported by an inner layer of whitematter. In eutherian (placental) mammals,...
It occurs when the development of the corpus callosum, the band of whitematter connecting the two hemispheres in the brain, in the embryo is disrupted...
Apart from the disseminated lesions that define the condition, the CNS whitematter normally shows other kinds of damage. At least five characteristics are...
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