nodes of Ranvier


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Related to nodes of Ranvier: myelin sheath, multiple sclerosis, Neurotransmitters, axon, action potential

nodes of Ranvier

Narrow gaps between the ends of the segments of myelin that insulate single nerve axons. (Louis Antoine Ranvier, 1835–1922, French pathologist).

nodes of Ranvier

see MYELIN SHEATH.

Ranvier,

Louis A., French pathologist, 1835-1922.
nodes of Ranvier - short intervals in the myelin sheaths of nerve fibers.
Ranvier crosses - black or brown figures in the shape of a cross, marking Ranvier nodes in the longitudinal section of a nerve stained with silver nitrate.
Ranvier disks - tactile nerve endings of cupped disklike form in the skin. Synonym(s): Ranvier tactile disks
Ranvier membrane
Ranvier plexus - a subbasal stroma plexus of the cornea.
Ranvier segment - the portion of a myelinated nerve fiber between two successive nodes. Synonym(s): internodal segment
Ranvier tactile disks - Synonym(s): Ranvier disks
References in periodicals archive ?
Molecular reconstruction of nodes of Ranvier after remyelination by transplanted olfactory ensheathing cells in the demyelinated spinal cord.
Conduction in a normally myelinated nerve is made possible by the presence of sodium channels primarily located at the nodes of Ranvier (Fig 1).
Nerve malfunctions, called neuropathies, involve a breakdown in the way the brain sends and receives electric signals along nerve cells, leading to malfunctions at the nodes of Ranvier, along with demyelination," he added.
The team then knocked out nsf in zebrafish, and showed that this protein is indeed required for the formation of the nodes of Ranvier and, ultimately, the myelination of nerve fibers.