A node of Ranvier is a gap in the myelin sheath of an axon where action potentials are regenerated during saltatory conduction, allowing for rapid signal transmission.
Gap in the myelin sheath of certain axons where an action potential may be generated. In saltatory conduction, an action potential is regenerated at each node, appearing to “jump” along the axon from node to node.
| Front | node of Ranvier |
|---|---|
| Back | Gap in the myelin sheath of certain axons where an action potential may be generated. In saltatory conduction, an action potential is regenerated at each node, appearing to “jump” along the axon from node to node. |
Tags: ch.48
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