CENTRAL NERVOUS SYSTEM
BRAIN
WHITE MATTER
It is situated under the gray matter. Most of its volume is occupied by myelinated axons. Under the microscope a section of the region of white matter has far fewer nuclei than the gray matter. Most of them are nuclei of neuroglial cells (highlighted in blue). Among this group of cells, oligodendrocytes are especially numerous, as they surround the axonal extensions. There are also nuclei of endothelial cells of blood capillaries (a capillary highlighted in red).
The white matter clearly exhibits a fibrillar appearance, due to the large number of axons that are arranged in an organized bundles.
White matter of the brain. Staining: HE. Mediul manification.
