Neve conduction is actually a mixture of chemical and electrical mechanisms, in vertebrates. The signal travels electrically in short hops, and is then regenerated by a chemical process. Invertebrates have propagation velocities of more like 1 metre / second. <http://www.biologymad.com/NervousSystem/nerveimpulses.htm#impulsespeed>

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David Woolley

On 29/12/2019 03:27, Kevin McQuiggin wrote:
It does not negate the argument, but nerve impulses are based on chemical 
reactions in neurons, and only travel at about 120 metres per second.

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