Development of the Nervous System

The CNS originally develops from a longitudinal groove on the neural plate that forms the rudimentary nervous system.

The peripheral nervous system develops from two strips of tissue called the neural crest, running lengthwise above the neural tube.

The peripheral nervous system is able to repair and regenerate itself, but the central nervous system is incapable of doing so.

One of the effects of aging on the nervous system is the loss of neurons in cerebral cortex.