What does node of ranvier mean?
Definitions for node of ranvier
rɑnˈvyeɪ, ˈrɑn vyeɪnode of ran·vi·er
This dictionary definitions page includes all the possible meanings, example usage and translations of the word node of ranvier.
Wiktionary
node of Ranviernoun
A small constriction in the myelin sheath of axons
Etymology: For Louis-Antoine Ranvier French physician
Wikipedia
Node of Ranvier
In neuroscience and anatomy, nodes of Ranvier ( RAHN-vee-ay), also known as myelin-sheath gaps, occur along a myelinated axon where the axolemma is exposed to the extracellular space. Nodes of Ranvier are uninsulated and highly enriched in ion channels, allowing them to participate in the exchange of ions required to regenerate the action potential. Nerve conduction in myelinated axons is referred to as saltatory conduction (from Latin saltus 'leap, jump') due to the manner in which the action potential seems to "jump" from one node to the next along the axon. This results in faster conduction of the action potential.
Wikidata
Node of Ranvier
Myelin sheath gaps, or more commonly known as nodes of Ranvier, are the gaps formed between the myelin sheaths generated by different cells. A myelin sheath is a many-layered coating, largely composed of a fatty substance called myelin, that wraps around the axon of a neuron and very efficiently insulates it. At nodes of Ranvier, the axonal membrane is uninsulated and therefore capable of generating electrical activity.
Numerology
Chaldean Numerology
The numerical value of node of ranvier in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of node of ranvier in Pythagorean Numerology is: 2
Translations for node of ranvier
From our Multilingual Translation Dictionary
- عقدة من رانفيرArabic
- रनवीर के सिरेHindi
- nodo di ranvierItalian
- nodi a RanvierLatin
- nó de ranvierPortuguese
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"node of ranvier." Definitions.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.definitions.net/definition/node+of+ranvier>.
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