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(A) TEM image of an uninjured spinal cord showing a microglia (white arrowhead). (B) TEM image of a 3‐day post injured spinal cord showing a microglia (white arrow) near the injury site. Red arrowhead indicates a blood vessel. (C) TEM image of a 3‐day post injured spinal cord showing an activated microglia near the central canal (having finger‐like cytoplasmic projections, red arrows) of injured spinal cord (blue arrow). Nu, cell nucleus. Scale bar 1 μm (A), 5 μm (B), 2 μm (C)
