Nodes of Ranvier

nodes of Ranvier
(ran-veer)
The small gaps in the myelin sheath between successive glial cells along the axon of a neuron; also, the site of high concentration of voltage-gated ion channels.
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nodes of Ranvier
the small gaps in the myelin sheath between successive ganglia cells along the axon of a neuron; also, the site of high concentration of voltage-sensitive ion channels.
Nostoc
a blue-green algae.
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Action potentials are only regenerated at the unmyelinated nodes of Ranvier which are spaced intermittently between myelinated segments.
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Between these cells there are small gaps in the myelin sheath called the Nodes of Ranvier. Action potentials are able to jump from one node to the next one down the neuron incredibly rapidly.
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which is formed by either of two types of glial cells: Schwann cells ensheathing peripheral neurons and oligodendrocytes insulating those of the central nervous system. Along myelinated nerve fibers, gaps in the sheath known as nodes of Ranvier occur ...
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These produce the myelin sheath that surrounds many axons in the central nervous system (brain and spinal cord).
Astrocytes. These — often star-shaped — cells are clustered around synapses and the nodes of Ranvier where they perform a ...
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