It depends on what milieu you mix in. Some neuroscientists study electrophysiology of the brain in primary terms. Evolutionary biologists see both systems as

It depends on what milieu you mix in. Some neuroscientists study electrophysiology of the brain in primary terms. Evolutionary biologists see both systems as inextricably linked. The Schwann cells that encase axons to provide myelinated insulation are separated by gaps in which ion channels gate the charged fluid flow which propagates electrical activity like a mexican wave in a football crowd.