The neural tissue of the brain and spinal cord, consisting of nerve fibers.
Nerve tissue in the central nervous system which contains more myelin than grey matter.
Nerve tissue of the spinal cord, surrounding the gray matter and made up mostly of myelinated and unmyelinated nerve fibers in a network of neuroglia cells. It is divided in each half of the spinal cord into columns containing tracts of closely related nerve fibers.
The tissue of the central nervous system consisting mainly of myelinated nerve fibers.
Brain tissue containing myelinated nerve fibers. White matter carries information between nerve cells in the brain and spinal cord. White matter is found in the inner portion of the cerebrum, the area of the brain where thought and other higher brain functions take place.
Nerve tissue of the central nervous system that is paler in color than the associated gray matter because it contains more nerve fibers and thus larger amounts of the insulating material myelin. In the brain the white matter lies within the gray layer of cerebral cortex; in the spinal cord it is between the arms of the X-shaped central core of gray matter.
Nerve tissue of the spinal cord and brain, composed mainly of myelinated nerve fibers.
The part of the brain that contains myelinated nerve fibers and appears white, in contrast to the cortex of the brain, which contains nerve cell bodies and appears gray.
Region of the spinal cord made up of axons traveling up and down.
White matter is a component of the nervous system consisting of nerve fibers, specifically axons. It forms the majority of the cerebrum, which encompasses the two large hemispheres of the brain, and extends into the spinal cord. The primary function of white matter is to facilitate the transmission of nerve impulses.