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| Neuroglia Glia | Glial Cells | Neuroglial Cells | Cell, Glial | Cell, Neuroglial | Cells, Glial | Cells, Neuroglial | Glial Cell | Neuroglial Cell The 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, participate in the BLOOD-BRAIN BARRIER and BLOOD-RETINAL BARRIER, 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. | |
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