Article
Diversification and conservation of the extraembryonic tissues in mediating nutrient uptake during amniote development
1 Oct 2012
Abstract excerpt
The transfer of nutrients from the mother through the chorioallantoic placenta meets the nutritional needs of the embryo during human prenatal development. Although all amniotes start with a similar "tool kit" of extraembryonic tissues, an enormous diversity of extraembryonic tissue formation has evolved to accommodate embryological and physiological constraints unique to their developmental programs. A...
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