XB-STAGE-7
Definition: The stages from Nieuwkoop and Faber stage 10 to stage 12.5, during which gastrulation takes place, with a proportion of cells migrating below the surface of the embryo to form two inner layers (endoderm and mesoderm) and the cells which remain outside spreading over the whole surface of the embryo to form the ectoderm. Component Stages: NF stage 10, NF stage 11, NF stage 12, NF stage 10.25, NF stage 10.5, NF stage 11.5, NF stage 12.5 |
[2.8.5]
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