更多hypoblast例句

1. To form the hypoblast a certain number of the cells of the lower layer begin to undergo remarkable changes.
2. It occurs by a direct conversion, cell for cell, of the white yolk spheres into hypoblast cells.
3. The growth of the hypoblast takes place in a very different way.
4. I have already spoken of the gradation of the hypoblast at the edge of the blastoderm into white yolk.
5. The mesoblast cells are in contact with both hypoblast and epiblast, and appear to be fused with the latter.