ectoderm
Example Sentences
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During normal embryonic development, they give rise to three major cell types: endoderm, ectoderm, and mesoderm.
From Science Daily ● Aug. 28, 2026
Also, single cell RNA sequencing analysis suggested the differentiation pathway for amniotic ectoderm, where surface ectoderm genes are expressed before the activation of the amniotic ectoderm gene programme.
From Science Daily ● Mar. 4, 2024
Moreover, the developmental pathway through surface ectoderm state to amniotic ectoderm state was also observed in primate embryos.
From Science Daily ● Mar. 4, 2024
Amniotic and surface ectoderm cells are specialised at an early stage of development and largely share biological features, such as gene expression patterns and signal requirements.
From Science Daily ● Mar. 4, 2024
As a general rule the ectoderm and endoderm, which may be called the primary layers, come first, and later the mesoderm is developed from one or other of them.
From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various
