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Axon Tip

In order to fully understand the interface methods of neuroprosthetics and brain-machine interfacing, increasingly used to interface with VR systems, a basic grounding of the wetware components of the brain might be beneficial.

The axon tips are known by many other names as well. Bouton, the synaptic knob, or the axon foot are the common ones. It is the very end of the axon, farthest part away from the cell body, and it is a spindly structure, not dissimilar to a winter tree expanding in a canopy of ever-smaller branches from a main trunk (the axon). This fanning structure stretches out with some endings growing into new branches, others retracting. They feel out in the tissue around them, for the dendrites of another nerve cell. Where an axon tip reaches a dendrite, a synapse is formed.

The same axon, by means of axon tips, may contact the dendrites of dozens, even hundreds of other nerve cells.

See Also: Axon, Dendrite, Synapse

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Studies with fruit flies have shown that the specialized nerve cells called neurons can rebuild themselves after injury.

These results, potentially relevant to research efforts to improve the treatment of patients with trauma...

Researchers at the Institut de recherches cliniques de MontreĢal (IRCM) are among the many scientists around the world trying to unearth our nervous system's countless mysteries. Dr. Artur Kania, Director of the IRCM's Neural Circuit Dev...

A tiny neuron is a very complicated structure. Its complex network of dendrites, axons and synapses is constantly dealing with information, deciding whether or not to send a nerve impulse, to drive a certain action.

It turns ...

A protein required to regrow injured peripheral nerves has been identified by researchers at Washington University School of Medicine in St. Louis.

The finding, in mice, has implications for improving recovery after nerve inj...

Brain and spinal-cord injuries typically leave people with permanent impairment because the injured nerve fibers (axons) cannot regrow. A study from Children's Hospital Boston, published in the December 10 issue of the journal Neuron, show...