FROM THE PROTO-CELL TO MAN

The division of the Nervous System into the Central and Peripheral Nervous Systems is a phylogenetically and conceptually inadequate representation, as the Nervous System originates from the choices of proto-cells, which only after 3.2 billion years transformed the choices into neurons giving rise to the first plexorial or original system.
Historically, over a period of about 2 billion years, at the most difficult times related cells would temporarily gather together to better cope with difficulties from the environment. Only later, about 600 million years ago, did they merge into a single organism.
This probably came about through a super-cell that found itself having developed the qualities to organize the others, acquiring upon itself, in a new synthesis, the results of the individual choices of the cells that had become "submissive." Thus was born, slowly and probably after many unsuccessful attempts, the Original MindNeural or Plexorial System.
Later, some neurons began to move to the anterior part of the organism (cephalization) until they overpowered the choices of the original system, remaining connected to each other in an intense synergy while performing other vital functions. Once the choices of the new derived system began to increase the number of neurons overlapping the previous layers (which became sub-cortical), the intense interaction with the original system also became increasingly complex.
Included in this system are cortical structures that are dependent on the prefrontal, where the "subtle" substance of proto-consciousness created, over time, by choices is probably most prevalent. Substance that, in its different modalities and complexity depends on the degree of differentiation of the system, which I now call the choices-mindneural system.