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  • Title: Intermittent myelination of small-diameter sciatic axons in Xenopus laevis.
    Author: Smith RS, Chan H, Schaap CJ.
    Journal: J Neurocytol; 1985 Apr; 14(2):269-78. PubMed ID: 4045507.
    Abstract:
    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.
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