[Neuroscience] Re: Distant connections between neurons

r norman NotMyRealEmail at _comcast.net
Sat Mar 25 18:59:47 EST 2006


On 25 Mar 2006 15:07:59 -0800, "chadmaester"
<chad.d.johnson at gmail.com> wrote:

>Are "distant connections" between neurons direct or indirect? If neuron
>A from one brain region is connected to neuron B in another brain
>region, is neuron A's axon really long so that it can directly connect
>to neuron B's dendrites, or is neuron A indirectly connected to neuron
>B by way of other neurons (i.e., C, D, E, etc.)?

Both.

A neuron can send an axon from one brain region to another with a
direct (monosynaptic) connection or it can pass through several
interneurons.  Long connections from one region to another are very
common -- any neuroanatomy book will describe a tremendous variety of
such tracts connecting brain regions.  


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