Neuron densities?

Randy Ellingson rellings at
Mon Dec 5 11:52:41 EST 1994

Hello--I do not have any significant background in neuroscience or biology, but
I have a few question for those who do.  Are neurons a well-defined entity? 
And do they exist in many different parts of the body besides the brain?  Then 
the biggie:  

What, approximately, is the ration of neurons in the head
to the neurons in the rest of the body?

Thanks for the information.

Randy Ellingson
National Renewable Energy Lab, Golden, Colorado
rellings at

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