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What are the nodes of Ranvier?

In: Science, Human Anatomy, Human Physiology, Nerves [Edit categories]

Answer:

As you may know nerve cells (Neurones) have a layer of fatty Insulation surrounding them called a Myelin Sheath. These a long flat structures projecting from various cells wrap around the Axon. This forms a Discontinuous sheeth meaning it has section that are covered but with gaps in the middle. Ions cannot pass through the membrane of the neurone at parts that are sheethed but only at the gaps. The gaps are what are known as Node Of Ranvier, called node because "electrical" conduction takes place here.

First answer by Anatomy James. Last edit by Anatomy James. Contributor trust: 180 [recommend contributor ]. Question popularity: 2 [recommend question].

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Relevant answers:

Where are the nodes of the ranvier located?
Along the axon of a neuron (on the unmeylinated parts)
Function of nodes of ranvier?
In invertebrate nerves, axons and dendrites are uncovered, and signal transfer is a fairly slow process. In vertebrates, many axons and dendrites are covered in myelin, a fatty substance which...
What is the function of Node Ranvier?
Nodes of Ranvier are the gaps on a neuron between the each myelin sheath where the action potentials are conducted. The action potentials 'jump' from node to node and therefore a mylinated neuron has...
Why node of ranvier is present on myelinated axon?
Nodes of ranvier are locations of bare cell membrane between segments of myelinated cell membrane. Ion channels responsible for repropagation of action potentials are concentrated at these nodes....
What is the function of the nodes of Ranvier?
The Node of Ranvier, found in neurons, are important for speeding up the process of transmitting signals from the central nervous system to the receiving muscle. Because it is not protected, the...