Fig. 1.

Distribution of microtubules in the cell body and processes of a cultured oligodendrocyte. Optical sections of ∼0.6 μm axial resolution through an oligodendrocyte labeled with an anti-β-tubulin primary antibody and an FITC-labeled secondary antibody, and examined by confocal microscopy. Microtubules are present throughout the cell body and processes of this cell and have a filamentous appearance, forming a meshwork in the perinuclear cytoplasm and parallel arrays in the processes. There is no evidence of discrete microtubule organizing structures in this cell. Scale bar, 10 μm.