What Are The Four Stages Of Nervous System Development?

What Are The Four Stages Of Nervous System Development? Stage 1: Neurogenesis. Stage 2: Cell Migration. Stage 3: Differentiation. Stage 4: Outgrowth. What are the 4 main parts of the nervous system? The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest