Ectoderm

Template:Infobox Embryology Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

The ectoderm is the start of a tissue that covers the body surfaces. It emerges first and forms from the outermost of the germ layers.

What forms from it (general)?

• Nervous system
• Outer part of integument

What forms from it (vertebrates)?

In vertebrates, the ectoderm has three parts: external ectoderm (also known as surface ectoderm), the neural crest, and neural tube. The latter two are known as neuroectoderm.