The second part deals with gastrulation at the cellular level and discusses different modes of mesoderm internalization and migration, including how the mesoderm is induced and how embryonic ...

mesoderm and ectoderm lineages using appropriate signals. In utero, the blastocyst implants and all three embryonic germ layers are formed during gastrulation. Somatic stem cells are present in ...

Gastrulation also establishes the three primary germ layers - ectoderm, endoderm and mesoderm. These germ layers have different developmental fates and form characteristic tissues and organs during ...

Gastrulation also establishes the three body ... These would eventually form the mesoderm—the embryonic tissue layer which later gives rise to muscles and bones. Other specialized cell types ...