This musculature originates from the mesoderm, which, along with the ectoderm and endoderm, is one of the three embryonic ...

As development continues, the epiblast invades inward toward the primitive endoderm. This begins the differentiation into the three germ layers that will construct all other bodily tissues: ectoderm, ...

Embryonic stem cells in culture are capable of self-renewal without differentiation and are able to differentiate into all cell types of the endoderm, mesoderm and ectoderm lineages using ...