Definitions for ranvier's nodes
Ranvier's nodes, nodes of Ranvier(noun)
small gaps in the myelin sheath of medullated axons
U.S. National Library of Medicine
Regularly spaced gaps in the myelin sheaths of peripheral axons. Ranvier's nodes allow saltatory conduction, that is, jumping of impulses from node to node, which is faster and more energetically favorable than continuous conduction.
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