develops from start stage end stage glial cell glial cell (sensu Vertebrata) CL:0000243 TAO:0009147 glial cells (sensu Vertebrata) A non-neuronal cells 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. Form the myelin insulation of nervous pathways, guide neuronal migration during development, and exchange metabolites with neurons. Neuroglia have high-affinity transmitter uptake systems, voltage-dependent and transmitter-gated ion channels, and can release transmitters, but their role in signaling (as in many other functions) is unclear. zebrafish_anatomy ZFA:0009147 glioblast (sensu Vertebrata) unknown adult