Primitive Streak > Anterior Primitive Streak

Embryonic Index: PrS.APS

Anterior primitive streak derivatives include the axial and paraxial mesoderm and the definitive endoderm. Fate mapping of the cells that migrate through the primitive streak shows that cells of the axial mesoderm and the anterior definitive endoderm of the embryonic gut ingress through the anterior-most region, while the paraxial mesoderm emerges in the anterior-third region.