What is epiboly and emboly?
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Epiboly is a cell movement that occurs in the early embryo, at the same time as gastrulation. It is one of many movements in the early embryo that allow for dramatic physical restructuring (see morphogenesis). The movement is generally characterized as being a thinning and spreading of cell layers. Epiboly has been most extensively studied in zebrafish as their development allows for an easy visualization of the process
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Epiboly is a cell shift that transpires in the new fetus at the time of gastrulation. The main characteristics of this can be seen in the thinning and spreading of the cell layers. Throughout this process, the cells on one front rise quickly and enclose the moderately raising cells on the opposite front and make ectoderm.
Whereas, the emboly is the manner through which there transpires an invagination of the blastula to create gastrula.
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