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ectoderm
Sign in to saveThe ectoderm is one of the three primary germ layers formed in early embryonic development. It is the outermost layer, and is superficial to the mesoderm (the middle layer) and endoderm (the innermost layer). It emerges and originates from the outer layer of germ cells. The word ectoderm comes from the Greek ektos meaning "outside", and derma meaning "skin".
Key facts
- Embryology.Name
- Ectoderm
- Embryology.Image
- Ectoderm.png
- Embryology.Caption
- Organs derived from ectoderm.
- Embryology.Image2
- Gray11.png
- Embryology.Caption2
- Section through embryonic disk of Vespertilio murinus.
- Embryology.Days
- 16
via Wikipedia infobox
Research
20,517 papers- Ectoderm as a determinant of early tissue pattern in the limb bud.Cell differentiation · 1984
- Rare diseases of ectoderm: Translating discovery to therapy.American journal of medical genetics. Part A · 2023
- A Modular Platform for Differentiation of Human PSCs into All Major Ectodermal Lineages.Cell stem cell · 2017
- Human surface ectoderm and amniotic ectoderm are sequentially specified according to cellular density.Science advances · 2024
- Ocular surface ectoderm instigated by WNT inhibition and BMP4.Stem cell research · 2020
via PubMed
Wikidata facts
Show 2 more facts
- Commons category
- Ectoderm
- NCI Thesaurus ID
- C12703
Sources (6)
via Wikidata · CC0
~10 min read
Article
12 sectionsContents
- History
- Differentiation
- Initial appearance
- Early development
- Gastrulation
- Later development
- Neurulation
- Organogenesis
- Clinical significance
- Ectodermal dysplasia
- See also
- References
The ectoderm is one of the three primary germ layers formed in early embryonic development. It is the outermost layer, and is superficial to the mesoderm (the middle layer) and endoderm (the innermost layer). It emerges and originates from the outer layer of germ cells. The word ectoderm comes from the Greek ektos meaning "outside", and derma meaning "skin".
Generally speaking, the ectoderm differentiates to form epithelial and neural tissues (spinal cord, nerves and brain). This includes the skin, linings of the mouth, anus, nostrils, sweat glands, hair and nails, and tooth enamel. Other types of epithelium are derived from the endoderm.