1 week: Cells that will make brain and spinal cord first roll into a hollow cylinder {periventricular germ layer}, then multiply around that cavity, and then migrate outwards to form neuroblasts.
Biological Sciences>Zoology>Development>Stages>Gestation>Embryo 007 Day
4-Zoology-Development-Stages-Gestation-Embryo 007 Day
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Date Modified: 2022.0224