Watch this 2-Minute Neuroscience video to learn more about glial cells.

non-neuronal nervous system cells. Glia comes from the Greek for "glue," and initially it was thought that glia served only to hold neurons in place and act as supportive cells. Now, however, glia are recognized as having a variety of functions that range from providing support to neurons to influencing neurotransmission. Glia include astrocytes, oligodendrocytes, microglia, Schwann cells, radial glia, and satellite cells.