(also Ranvier's node)
A gap in the myelin sheath of a nerve, between adjacent Schwann cells.
- Mammalian vertebrates may also have the morphological equivalent of the septate junction where Schwann cells link to nerve axons at the node of Ranvier.
- The myelin sheath around an axon is interrupted at regular intervals known as the nodes of Ranvier.
- Another node of Ranvier more clearly shows the dark axon as it continues through the node.
Late 19th century: named after Louis Antoine Ranvier (1835–1922), French histologist.
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Syllabification: node of Ran·vier
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