Health / Medical Topics

    Germ layers


    After the blastocyst stage of embryonic development, the inner cell mass of the blastocyst goes through gastrulation, a period when the inner cell mass becomes organized into three distinct cell layers, called germ layers. The three layers are the ectoderm, the mesoderm, and the endoderm.

     

     

    Source: Stem Cell Information, NIH, USDHHS




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