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Conception
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Germinal Period
Takes place the first 2 weeks after conception.Creation of zygote(fertilized egg), cell division, and attachment of the zygote to the uterine wall. -
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Brain
1) Neural Tube - hollow tube on the embryos back developing out of the ectoderm for the nervous system. -
Embryonic Period
Takes place from 2 - 8 Weeks. Cell differentiation intensifies, support system for cells form, and organs appear -
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Brain
2) Neurogenesis- once the neural tube is closed then the generation of new neurons begin -
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Brain
3) Neural Migration- cells moving outward from their point of origin of their appropriate locations and creating different levels. -
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Brain
Neural Connectivity - connections between neurons begin to occur and continue after birth -
Baby Born
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Fetal Period
Takes place for 7 months. Fetus becomes active, opening and closing of mouth, moving head. All body parts are completely formed.