| 1. | The brain develops from the ectoderm and blood from the mesoderm.
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| 2. | The cells in the early primitive ectoderm basically make the embryo,
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| 3. | The median ocelli develop from a transverse fold of the ectoderm.
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| 4. | Ectodermal dysplasia describes abnormalities of structures derived from the embryonic ectoderm.
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| 5. | These cells are also derived from epiblast which is transformed into ectoderm.
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| 6. | The formation of the neural tube from the ectoderm is called neurulation.
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| 7. | Meanwhile, the overlying ectoderm secretes bone morphogenetic protein ( BMP ).
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| 8. | BMP antagonists diffusing from the ectoderm generates a gradient of BMP activity.
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| 9. | Abnormal ectoderm patterning will cause abnormal and no neural folding.
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| 10. | Nasal placodes originate on the frontonasal prominence from the ectoderm.
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