Formation of the Nervous System Formation of different regions of the nervous system. FGF8 is released at this border. These compartments are separate developmental territories'. Each rhombomere has a different developmental fate. The products of Hox genes are transcription factors.
Mitosis occurs in the inner layer of the neural tube, next to the lumen.
Migration of cells forms layers in the mammalian cerebral cortex. Cells of the inside layer are born first. Cells of the outside layers crawl along radial glial cells to reach their precise destination. In the mammalian cerebellum First the internal germinal layer forms. Cells from both of these layers migrate toward each other and form different populations of neurons within the cerebellar cortex.