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node of Ranvier Definition

node of Ran·vier (rän vyā′)

noun pl. nodes of Ranvier

any of the constrictions along the myelin sheath that surrounds an axon of a nerve cell: nodes are formed where two Schwann cells meet and are essential to the proper transmission of nerve impulses

Etymology: after L. A. Ranvier (1835-1922), Fr histologist

Browse dictionary entries near node of Ranvier

  1. ‹ node
  2. ‹ noddy
  3. ‹ noddle
  4. ‹ nodding acquaintance
  5. ‹ nodal
  6. ‹ nod
  7. ‹ nocuous
  8. ‹ nocturne
  9. ‹ nocturnal emission
  10. ‹ nocturnal
  1. nodical ›
  2. nodose ›
  3. nodule ›
  4. nodus ›
  5. noel ›
  6. noetic ›
  7. nog ›
  8. noggin ›
  9. nogging ›
  10. Noguchi ›