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White matter structure of human brain (taken by MRI).Anterior on the right. White matter refers to areas of the central nervous system (CNS) that are mainly made up of myelinated axons, also called tracts. [1]
The cerebrum, the largest part of the human brain, consists of two cerebral hemispheres. Each hemisphere has an inner core composed of white matter, and an outer surface – the cerebral cortex – composed of grey matter. The cortex has an outer layer, the neocortex, and an inner allocortex.
3.2.1 White matter. 3.2.2 Subcortical. 3.2.3 ... Embryonic vertebrate subdivisions of the developing human brain hindbrain or rhombencephalon is a developmental ...
However, detailed analyses of white matter microstructure revealed that superagers had higher fractional anisotropy and lower mean diffusivity — two measures related to brain decline at a ...
The uncinate fasciculus is a white matter association tract in the human brain that connects parts of the limbic system such as the temporal pole, anterior parahippocampus, and amygdala in the temporal lobe with inferior portions of the frontal lobe such as the orbitofrontal cortex.
“White matter hyperintensities specifically refer to lesions found in the white matter tracts of the brain, i.e., the cables connecting neurons, and are an imaging biomarker for diseases ...
Dissection of a human brain with labels showing the clear division between white and gray matter. Microscopically, there are differences between the neurons and tissue of the CNS and the peripheral nervous system (PNS). [11] The CNS is composed of white and gray matter. [9] This can also be seen macroscopically on brain tissue.
About 60% of the brain consists of white matter, which connects different areas of the brain together to help with communication for focus, learning, and balancing while moving. ... Of the 50,000 ...