Neurons

From a mouse the geeks at MIT killed

First, while alive, they shine a light on it to light up the cell region. They they slice the brain and panstakingly map out the neurons.

How much you want to bet the dendrite connections obey a discrete Shannon law in conection space,  they break up the connections into economies of scale. bunches of smaller, dense dendrites then larger less dense, in steps.  Cells have to ionize the soup before they trigger an output. If they minimized firings, then they would build up on a small scale, then ftransfer that result to a larger scale, eventually reaching a potential that can fire downthe sheath to the next cell.

This is the Wiki schematic of a nerve sells. The myelin sheath sends the output to another part ofthe nearby brain.