Astrocyte (astroglia) refers to the relatively large, star-shaped glia cell. Moreover, Astrocytes are non-neural, star-shaped glia cells that are highly branched and occupy much space between neurons in the gray matter . Their multiple functions include supporting neurons by interweaving among nerve fibers , contributing to the metabolism of synaptic transmitters, and regulating the balance of ions. Astrocytes join together to provide a barrier between parts of the central nervous system (CNS) and non-CNS tissue.

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