Myelin
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Myelin is a lipid-rich material that in most vertebrates surrounds the axons of neurons to insulate them and increase the rate at which electrical impulses pass along the axon. The myelinated axon can
Transmission electron micrograph of a cross-section of a myelinated PNS axon, generated at the Electron Microscopy Facility at Trinity College, Hartford, Connecticut
Glia
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Glia, also called glial cells or neuroglia, are non-neuronal cells in the central nervous system and in the peripheral nervous system that do not produce electrical impulses. The neuroglia make up mor
Myelin
…synapse, which bind to receptors on the post-synaptic cell such as another neuron, myocyte or secretory cell. Myelin is made by specialized non-neuronal glial cells, that provide insulation, and nutritional and homeostatic support, along the length of the axon. In the central nervous system, myelination is formed…
An astrocyte from a rat brain grown in tissue culture and stained with antibodies to GFAP (red) and vimentin (green)
Neoplastic glial cells stained with an antibody against GFAP (brown), from a brain biopsy