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what is the name describing the movement of the migrating surface ectoderm cells during gastrulation?

what is the name describing the movement of the migrating surface ectoderm cells during gastrulation?

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name describing the movement of the migrating surface ectoderm cells during gastrulation is

Morphogenetic movements-

invagination-During invagination ,an epithelial sheets bends inward to form an inpocketing.

Ingression-during this cells leave an epithelial sheets by transforming from well-behaved epithelial cells into the freely migrating mesenchymal cells.

involution-a tissue sheet rolls inward to form an underlying layer via bulk movement of tissue.

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