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Definition of Ranvier's nodes
1. Noun. Small gaps in the myelin sheath of medullated axons.
Exact synonyms: Nodes Of Ranvier
Group relationships: Medullary Sheath, Myelin Sheath
Generic synonyms: Gap, Opening
Group relationships: Medullary Sheath, Myelin Sheath
Generic synonyms: Gap, Opening
Medical Definition of Ranvier's nodes
1. 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 favourable than continuous conduction. (12 Dec 1998)
Lexicographical Neighbors of Ranvier's Nodes
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