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Ranvier

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Ranvier
Ranvier Anat. (rɑ̃vje) [The name of Louis Antoine Ranvier (1835–1922), French histologist.] node of Ranvier (also Ranvier('s) node): each of the interruptions of the myelin which occur regularly along the sheaths of myelinated nerves; (described by Ranvier in Le{cced}ons sur l'Histologie du Système ... Oxford English Dictionary
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Nodes of Ranvier (band)
Nodes of Ranvier is a metalcore band from Sioux Falls, South Dakota, US, that was signed to Victory Records. The band's name refers to the myelin sheath gaps which are also called Nodes of Ranvier. wikipedia.org
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Node of Ranvier
Born in Lyon, Ranvier was one of the most prominent histologists of the late 19th century. Ranvier abandoned pathological studies in 1867 and became an assistant of physiologist Claude Bernard. wikipedia.org
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What is the function of nodes of Ranvier in axons? In a neuroscience class I'm taking, it was explained that myelin covers axons in sections, the uncovered sections are called nodes of Ranvier, and signals propagate m...
Each Ranvier node can be seen as an active signal repeater.
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Louis-Antoine Ranvier
Louis-Antoine Ranvier (2 October 1835 – 22 March 1922) was a French physician, pathologist, anatomist and histologist, who discovered the nodes of Ranvier Paris Ranvier, Louis-Antoine. 1885. Exposé des titres et des travaux de M. L. Ranvier. wikipedia.org
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Joseph-Louis Renaut
A student of Louis-Antoine Ranvier, he served as professor of anatomy and histology at the faculty of medicine in Lyons. In 1869 he became an interne des hôpitaux and continued to study under Victor André Cornil and Louis-Antoine Ranvier. wikipedia.org
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Why myelin sheat does not cover the whole axon? Is there an optimal lenght for myelin sheats to be effective and lead potential across the nerve cell? This has always bugged me.
The nodes of Ranvier (the gaps between myelin sheath segments) speed up the action potential because the electric current can jump from node to node (or The length of the myelin doesn't matter so much as the length of the nodes of Ranvier because they are where the Na+/K+ channels are found so the ion exchange
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Vendranges
Population Notable person Louis-Antoine Ranvier (1835–1922), physician, pathologist, anatomist and histologist, died in Vendranges See also Communes wikipedia.org
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Action potential attenuation in unmyelinated axons vs demyelinated axons I learnt that action potentials travel much faster along myelinated axons, and when these axons are demyelinated the action potentials travel mu...
They have stretches of myelinated axon which are (mostly) free of voltage-gated channels, interrupted by nodes of Ranvier that lack myelin but have dense current goes to charge the membrane capacitance, which is reduced by myelin) and it may not be enough to open voltage-gated channels at the next node of Ranvier
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Ankyrin-3
ankyrin-3 is an immunologically distinct gene product from ankyrins ANK1 and ANK2, and was originally found at the axonal initial segment and nodes of Ranvier Within the nervous system, ankyrin-G is specifically localized to the neuromuscular junction, the axon initial segment and the Nodes of Ranvier. wikipedia.org
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لويس أنطوان رانفييه
لويس أنطوان رانفييه (Louis-Antoine Ranvier) كان طبيباً وعالم تشريح وعالم أنسجة فرنسياً، ولد في بليون (فرنسا)، وتوفي في بفندرانج (فرنسا)، وهو مكتشف عقد wikipedia.org
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默克尔细胞
默克尔细胞（英文：Merkel Cell），又称默克尔-兰维尔细胞（Merkel-Ranvier cell）或触觉上皮细胞（tactile epithelial cell），是一种椭圆型的力学感受器，对轻微碰触敏感，存在于脊椎动物的皮肤内。 wikipedia.org
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Victor André Cornil
In 1865, with Louis-Antoine Ranvier (1835-1922), he founded a private laboratory. Here Cornil taught pathological anatomy and Ranvier gave classes in standard anatomy. wikipedia.org
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路易斯-安托万·兰维尔
路易斯-安托万·兰维尔（法语：Louis-Antoine Ranvier；），法国知名医生、病理学家、解剖学家、组织学家，以发现神经元的“兰氏结”而知名。默克尔-兰维尔细胞也以他和德国科学家弗里德里希·西格蒙德·默克尔的名字共同命名。 生平 兰维尔出生于法国里昂，1865年从医学院毕业。 参考资料 外部链接 Ranvier, Louis-Antoine at The Virtual Laboratory 法国科学家 法兰西科学院院士 wikipedia.org
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Saltatory conduction
In neuroscience, saltatory conduction () is the propagation of action potentials along myelinated axons from one node of Ranvier to the next node, increasing The uninsulated nodes of Ranvier are the only places along the axon where ions are exchanged across the axon membrane, regenerating the action potential wikipedia.org
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