The epiblast is the outer layer of cells in the developing embryo, formed during the early stages of embryogenesis. It plays a crucial role in the formation of the three germ layers: ectoderm, mesoderm, and endoderm, which eventually give rise to all tissues and organs in the body. The epiblast is essential for establishing the embryonic axis and contributes to the development of various structures as the embryo progresses.
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