Figure 8­28
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In peripheral nerves cut in longitudinal section, the nerve fibers have a characteristic wavy appearance. Within the
Holdings,
nerve are myelinated and unmyelinated nerve fibers, Schwann cells and endoneurium, nuclei of Schwann cells, and
fibroblasts. Often, the myelin is dissolved by the organic solvents used in the preparation of the specimen, and it
takes on a flocculent appearance. The darkly stained longitudinal striations are produced by the Schwann cell cyto-
LLC.
plasm and the endoneurium (or neurilemma), best seen in subsequent, more highly magnified images.
Not
to
At the top of the field is the loose connective tissue of the epineurium (arrow). The dense tissue adjacent to the
be
fascicle of nerve fibers is the perineurium (arrowhead).
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380

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