Remarks about possible sources of nerve cells origins:

1. Repairing nad creating neural cell systems in human body.

2. It may be possible to learn from embryonic cell research and understanding the genetic material - load.

3. The limits of cell sorting and development must of course be addressed in a negative direction (cancer). Possible genetic mutation or P53 protein error should be considered.

4. It may also be possible to learn from the above research regarding the formation of cancer and / or mutations, and vice versa.

5. There is also room to consider understanding about tissue regrowth and repair (possibly more relevant to body organs).