(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.

Nodes of ranvier are small spaces or gaps between the myelin sheath (the fatty substance that coats the axon). The myelin sheath coats some neurons and speeds information through the neuron. The way t [..]

Areas of the axon without myelin. The action potential (electrical signal) jumps rapidly from one node of Ranvier to the next, speeding up conduction.

The nodes of Ranvier are regular breaks in the myelin sheath that surrounds the axonal extension of nerve cells (neurons). Nodes of Ranvier links: Structure and Function of Nerve Cells Intercellular I [..]

Regularly spaced gaps in the Myelin Sheaths of peripheral Axons. Ranvier's nodes allow saltatory conduction, that is, jumping of impulses from node to node, which is faster and more energetically [..]