Category
page 1Endoderm
endoderm
Endoderm is the innermost of the three primary germ layers in the very early embryo. The other two layers are the ectoderm (outside layer) and mesoderm (middle layer). Cells migrating inward along the archenteron form the inner layer of the gastrula, which develops into the endoderm.
endodermal sinus tumor
germ cell cancer that has material basis in cells that line the yolk sac of the embryo