• (node of ranvier) An axon part that is a gap in the myelin where voltage-gated sodium channels cluster and saltatory conduction is executed.
  Gene Ontology Dictionary
  Gene Ontology Consortium, 2021
• (node of ranvier) Constrictions occurring on myelinated nerve fibers at regular intervals of about one millimeter; at these sites the myelin sheath is absent and the axon is enclosed only by Schwann cell processes; 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.
  CRISP Thesaurus
  National Institutes of Health, 2006
• 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.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• (node of ranvier) The gaps formed between myelin sheath segments along axons of certain neurons that serve to facilitate the rapid conduction of nerve impulses.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• Node of Ranvier, periodic gap in the insulating sheath (myelin) on the axon of certain neurons that serves to facilitate the rapid conduction of nerve impulses. These interruptions in the myelin covering were first discovered in 1878 by French histologist and pathologist Louis-Antoine Ranvier, who...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2020