Intermittent myelination of small-diameter sciatic axons inXenopus laevis
Copyright policy )Intermittent myelination of small-diameter sciatic axons inXenopus laevis
Nerve fibres from the sciatic nerve of apparently normal Xenopus laevis were examined in teased preparations of living material and in series of cross-sections. Small-diameter fibres were found that were myelinated in a spatially intermittent fashion. In these fibres, the myelinated segments were separated by long non-myelinated regions that had a 1 : 1 relationship to the investing Schwann cell. It is estimated that at least 10% of the myelinated fibres with an external diameter of less than 5 micrograms were intermittently myelinated.
- University of Alberta Canada
Microscopy, Electron, Xenopus laevis, Intercellular Junctions, Animals, Female, Schwann Cells, Nerve Fibers, Myelinated, Sciatic Nerve, Axons
Microscopy, Electron, Xenopus laevis, Intercellular Junctions, Animals, Female, Schwann Cells, Nerve Fibers, Myelinated, Sciatic Nerve, Axons
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