The process of embryonic development involves the formation of the human face and oral cavity from the morula stage onwards. Key structures such as the primitive streak play a vital role in establishing bilateral symmetry, initiating germ layer formation, and guiding gastrulation. The differentiatio

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Embryology is the study of the development of multicellular animals starting from fertilization when the sperm fertilizes the egg and forms the zygote. This initiates a series of events such as cleavage, morula formation, blastula development, and gastrulation, where three embryonic tissue layers ar

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Gastrulation is a crucial stage in embryo development where the blastula transforms into a gastrula, involving the formation of the archenteron and primitive germ layers. Morphogenetic movements play a key role in this process, leading to the reorganization of cells. In frogs, gastrulation involves

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Embryology of the gastrointestinal (GI) tract involves the formation of germ layers during gastrulation, leading to the development of endoderm, mesoderm, and ectoderm. By incorporating the yolk sac, the primitive gut tube emerges during weeks 3-4 and is divided into foregut, midgut, and hindgut, gi

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Gastrulation, the formation of germ layers, mesoderm, and endoderm, in the embryo occurs during the third week of gestation with the appearance of the primitive streak. Cells migrate to form endoderm and mesoderm while the ectoderm remains. Neural induction is regulated by factors like fibroblast gr

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