germ layer

noun

germ layer

embryol any of the three layers of cells formed during gastrulation See ectoderm mesoderm endoderm

germ layer

Any of three cellular layers, the ectoderm, endoderm, or mesoderm, into which most animal embryos differentiate in the gastrula stage and from which the organs and tissues of the body develop through further differentiation.

First recorded in 1875–80

If the germ-layer theory is no longer credited, upon what fundamental laws is embryology based?

In this manner the foundations of the germ-layer theory were established in their modern form.

In his germ-layer theory Remak's standpoint is histological 212rather than morphological.

He used the germ-layer theory to prove the essential unity of type of all the Triploblastica.

He it was who introduced the terms "Keimhaut" (blastoderm) and "Keimblatt" (germ-layer).

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