ectoderm

Example Sentences

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Surface ectoderm is a dense sheet of epidermal progenitors, which gives rise to the surface covering of the body, such as skin, and the associated features of teeth, hair and fingernails.

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

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

Diploblasts have a non-living layer between the endoderm and ectoderm.

From Textbooks • Jan. 1, 2015

The egg of Hydra is said to be fertilized as it lies at the base of the ectoderm, through which the fertilizing spermatozoon bores its way.

From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson