Internodal segment

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Internodal segment
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Diagram of longitudinal sections of medullated nerve fibers.
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Medullated nerve fibers stained with silver nitrate.
Latin segmentum internodale
Gray's subject #183 727
Dorlands/Elsevier s_07/12727330

The portion of nerve fiber between two Nodes of Ranvier is called an internodal segment (or internode). The neurolemma or primitive sheath is not interrupted at the nodes, but passes over them as a continuous membrane.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.


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