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Virtual Dictionary

Dendrite

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.

Dendrites spawn from the cell body of a neuron. Sometimes they can be all but impossible to tell from the axon, but they serve a very different purpose. Any given nerve cell body may spout thousands, or millions of dendrites, all of whom are short, thin protrusions, feeling out for an axon end.

When an axon end from another cell nears a dendrite, a synapse is formed, and electrochemical information is passed into the dendrite from the axon, for the dendrite to pass back to the main cell body for processing.

See Also: Axon tip, Synapse, Neuron

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Related Dictionary Entries for Dendrite:

Axon Tip

Dendrite

Neuron

Spiking Neuron

Synapse









 

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(06/12/2009)
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...


(10/11/2008)
At the junction between the axon and the cell body is the axon initial segment (AIS), which sparks action potentials. Researchers also suspect that the AIS enables an axon to maintain its identity. Although scientists have teased out some o...


(03/04/2009)
Ask a simple question, get a simple answer: When Abraham Lincoln was asked how long a man?s legs should be, he absurdly replied, ?Long enough to reach the ground.? Now, by using a new microscopy technique to watch the growth of individual n...


(14/09/2009)
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 ...


(22/01/2013)
A new finding in neuroscience for the first time points to a developmental mechanism linking the disease-causing mutation in an autism-related disorder, Timothy syndrome, and observed defects in brain wiring, according to a study led by sci...