Internodal segment

Internodal segment

Diagram of longitudinal sections of medullated nerve fibers.

Medullated nerve fibers stained with silver nitrate.
Latin segmentum internodale
Code TH H2.

Anatomical terminology

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


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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