Where Are Glial Cells Found?

Glial cells are found in the central nervous system (CNS) and peripheral nervous system (PNS). The important CNS glial cells are astrocytes, microglia, oligodendrocytes, radial glial cells, and ependymal cells. Schwann cells, enteric glial cells, and satellite glial cells are part of the PNS.

What are the 3 types of glia and where are they found?

There are three types of glial cells in the mature central nervous system: astrocytes, oligodendrocytes, and microglial cells (Figure 1.4A—C). Astrocytes, which are restricted to the brain and spinal cord, have elaborate local processes that give these cells a starlike appearance (hence the prefix “astro”).

Are glial cells in white and GREY matter?

Content of gray and white matter

Namely, the gray matter contains glial cells, axon tracts, neuropil (glia, dendrites, and unmyelinated axons), as well as capillary blood vessels (1). The white matter contains the glial cells responsible for the production of myelin (the oligodendrocytes) and the astrocytes (1).