Ectoderm

The ectoderm (from gr εκτος [ Ektos ] "outside" and to derma " skin ") is the upper or first germ layer of the embryo blasts. It is the cell layer after gastrulation exterior. The primitive ectoderm takes you through the process of neurulation ( the beginning of the development of the nervous system ) the embryonic mesoderm out ( primitive streak ).

From the ectodermal germ layer form:

• Skin ( cutis)
• Nervous system
• Sense organs
• Teeth