3D reconstruction of electron microscopy images showing a perinodal astrocyte (blue), node of Ranvier (gray), compact myelin (purple), and layers of myelin detaching from the axon (tan).

image: Using newly developed markers, the scientists were able to visualize axons, myelin, and nodes of Ranvier in vivo. A version of this image is used in the current article in Current Biology ...

Nerve fibers are surrounded by a myelin sheath. Scientists at the Technical University of Munich (TUM) have now made the first-ever "live" observations of how this protective layer is formed. The ...

Discovered by French scientist Louis-Antoine Ranvier in 1878, these tiny nodes have been known since 1939 to act like relay stations placed about 1 millimeter apart along the myelinated nerve to ...

James Hickman, a bioengineer at UCF and the lead researcher on this project explained: "The nodes of Ranvier act like power station relays along the myelin sheath.

The transmission speed of neurons fluctuates in the brain to achieve an optimal flow of information required for day-to-day activities, suggests a new study. The results, appearing in PNAS, suggest ...

The nodes of Ranvier — gaps in the myelin sheath that allow the efficient propagation of action potentials — are neuronal specializations that are less heralded, ...

The three best examples of ion channel/receptor clustering in the nervous system are found at the synapse, the node of Ranvier, and the axon initial segment (AIS). In the case of the synapse, the ...

University of Alabama at Birmingham researchers, for the first time ever, have achieved patch-clamp studies of an elusive part of mammalian myelinated nerves called the Nodes of Ranvier. At the ...