Fig. 10.1. This low power electron micrograph through the anterior commissure of a 6 year old monkey shows the three classical types of neuroglial cells. Oligodendrocytes, which are the most common neuroglial cell type in white matter, have rounded dark nuclei and dark cytoplasm. AstrocyteS have pale, somewhat irregularly shaped nuclei and a pale cytoplasm, while microglial cells have dark nuclei that are often kidney shaped.
