hypoblast
Quick Summary
The hypoblast is a layer of cells that forms during early embryonic development in some animals, including reptiles, birds, and mammals. It is one of the first cell layers to differentiate from the inner cell mass of the blastocyst.12
In mammals, the hypoblast is formed from cells that arrange into a layer facing the blastocyst cavity. This layer contributes to the formation of the embryonic endoderm, which eventually develops into the respiratory and digestive tracts. The hypoblast is also referred to as the endoderm of an embryo. The term "hypoblastic" describes something related to or derived from the hypoblast.3245
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blastocyst…layer of cells, called the hypoblast, between the inner cell mass and the cavity. These cells contribute to the formation of the embryonic endoderm, from which derive the respiratory and digestive tracts.
Read More…layer of cells, called the hypoblast, between the inner cell mass and the cavity. These cells contribute to the formation of the embryonic endoderm, from which derive the respiratory and digestive tracts.
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animal developmentReptiles, birds, and mammals…and a lower layer, the hypoblast. These layers do not represent ectoderm and endoderm, respectively, since almost all the cells that form the embryo are contained in the epiblast. Future mesodermal and endodermal cells sink down into the interior, leaving only the ectodermal material at the surface. In reptiles, egg-laying…
Read More…and a lower layer, the hypoblast. These layers do not represent ectoderm and endoderm, respectively, since almost all the cells that form the embryo are contained in the epiblast. Future mesodermal and endodermal cells sink down into the interior, leaving only the ectodermal material at the surface. In reptiles, egg-laying…
Read More