Mesoderm
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The mesoderm is the middle layer of the three germ layers that develops during gastrulation in the very early development of the embryo of most animals. The outer layer is the ectoderm, and the inner
Cytology of normal mesothelium, with typical features. Wright's stain.
Triploblasty
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Triploblasty is a condition of the gastrula in which there are three primary germ layers: the ectoderm, mesoderm, and endoderm. Germ cells are set aside in the embryo at the blastula stage, and are in
Classification of tripoblasts based on body cavities