glial cell Tomasz Adamusiak A non-neuronal cell of the nervous system. They not only provide physical support, but also respond to injury, regulate the ionic and chemical composition of the extracellular milieu. Guide neuronal migration during development, and exchange metabolites with neurons. MSH:D009457 James Malone NIFSTD:sao313023570 NCIt:C12615 The delicate network of branched cells and fibers that supports the tissue of the central nervous system. MERGED DEFINITION:nTARGET DEFINITION: The delicate network of branched cells and fibers that supports the tissue of the central nervous system.n--------------------nSOURCE DEFINITION: The cells of the supportive tissue of the central nervous system (neuroglia). These non-neural cells are of three kinds: astrocytes, oligodendrocytes (collectively termed macroglia) and microglia. SNOMEDCT:2156000 A non-neuronal cell of the nervous system. They not only provide physical support, but also respond to injury, regulate the ionic and chemical composition of the extracellular milieu. Guide neuronal migration during development, and exchange metabolites with neurons. (Reichenbach and Wolburg) cell type