nodes of Ranvier


nodes of Ranvier
noun
small gaps in the myelin sheath of medullated axons
Syn: ↑Ranvier's nodes
Hypernyms: ↑opening, ↑gap
Part Holonyms: ↑medullary sheath, ↑myelin sheath

Useful english dictionary. 2012.

Look at other dictionaries:

  • Nodes of Ranvier — are known as the gaps (about 1 micrometer in diameter) formed between myelin sheath cells along axons or nerve fibers. OverviewSeveral vertebrate axons are surrounded by a myelin sheath allowing rapid and efficient saltatory propagation of action …   Wikipedia

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  • nodes of Ranvier — constrictions occurring on myelinated nerve fibers at regular intervals of about 1 mm; at these sites the myelin sheath is absent and the axon is enclosed only by Schwann cell processes. See illustration and Plate 39. Node of Ranvier… …   Medical dictionary

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  • Nodes of Ranvier (album) — Nodes of Ranvier (Self titled album) Studio album by Nodes of Ranvier Released July 1, 2003 Genre Metalcore Labe …   Wikipedia

  • Ranvier, Louis-Antoine — ▪ French histologist and pathologist born Oct. 2, 1835, Lyon, Fr. died March 22, 1922, Thélys       French histologist and pathologist whose dynamic approach to the study of minute anatomy made his laboratories a world centre for students of… …   Universalium

  • Ranvier's nodes — noun small gaps in the myelin sheath of medullated axons • Syn: ↑nodes of Ranvier • Hypernyms: ↑opening, ↑gap • Part Holonyms: ↑medullary sheath, ↑myelin sheath …   Useful english dictionary

  • Ranvier crosses — dark, cross shaped markings at the nodes of Ranvier, seen on longitudinal section after staining with silver nitrate …   Medical dictionary

  • Ranvier crosses nodes segment (internode) tactile disks — Ran·vier crosses, nodes, segment (internode), tactile disks (rahn vyaґ) [Louis Antoine Ranvier, French pathologist, 1835–1922] see under cross, disk, and node, and see internodal segment under segment …   Medical dictionary

  • Louis-Antoine Ranvier — (b. Lyon, France, October 2, 1835; d. Vendranges, France, March 22, 1922, French physician, pathologist, anatomist and histologist, discoverer of the nodes of Ranvier, subcellular structure which covers the axons of neurons.Ranvier studied… …   Wikipedia