Astrocytes (etymology: astron gk. star, cyte gk. cell), also known collectively as astroglia, are characteristic star-shaped glial cells in the brain and spinal cord. They perform many functions, including biochemical support of endothelial cells that form the blood–brain barrier, provision of nutrients to the nervous tissue, maintenance of extracellular ion balance, and a role in the repair and scarring process of the brain and spinal cord following traumatic injuries. Image reproduction rights can be found in the link near the bottom of this description.This image has been digitally filtered to reduce blurring. All Rights Reserved; without: prejudice, recourse or notice (U.C.C. 1-308) Image Reproduction Rights:http://commons.wikimedia.org/wiki/File:Astrocyte.jpg
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