Glia

Glia
Glia
	Illustration of the four different types of glial cells found in the central nervous system: ependymal cells (light pink), astrocytes (green), microglial cells (dark red) and oligodendrocytes (light blue)
Details
Precursor	Neuroectoderm for macroglia, and hematopoietic stem cells for microglia
System	Nervous system
Identifiers
MeSH	D009457
TA98	A14.0.00.005
TH	H2.00.06.2.00001
FMA	54536 54541, 54536
	Anatomical terms of microanatomy

Glia, also called glial cells (gliocytes) or neuroglia, are non-neuronal cells in the central nervous system (brain and spinal cord) and the peripheral nervous system that do not produce electrical impulses. The neuroglia make up more than one half the volume of neural tissue in the human body.^[1] They maintain homeostasis, form myelin in the peripheral nervous system, and provide support and protection for neurons.^[2] In the central nervous system, glial cells include oligodendrocytes, astrocytes, ependymal cells and microglia, and in the peripheral nervous system they include Schwann cells and satellite cells.

^ Fields, R. Douglas; Araque, Alfonso; Johansen-Berg, Heidi; Lim, Soo-Siang; Lynch, Gary; Nave, Klaus-Armin; Nedergaard, Maiken; Perez, Ray; Sejnowski, Terrence; Wake, Hiroaki (October 2014). "Glial Biology in Learning and Cognition". The Neuroscientist. 20 (5): 426–431. doi:10.1177/1073858413504465. ISSN 1073-8584. PMC 4161624. PMID 24122821.
^ Jessen KR, Mirsky R (August 1980). "Glial cells in the enteric nervous system contain glial fibrillary acidic protein". Nature. 286 (5774): 736–7. Bibcode:1980Natur.286..736J. doi:10.1038/286736a0. PMID 6997753. S2CID 4247900.