The ToRCH infections are capable of crossing this structure.
This organ unusually expresses the nonclassical MHC class I antigens HLA-E and HLA-G. Hofbauer cells are specialized macrophages of this organ. The ToRCH infections are capable of crossing this structure. Part of this non-plant structure contains the cotyledons, which are segments of the decidua basalis. This structure, which consists of cells fused together into a syncytium, is permeable to IgG antibodies. It is derived partly from trophoblast tissue and one portion of it is the chorion. It is responsible for exchanging gases and nutrients between fetal and maternal blood. For 10 points, name this structure that is expelled from the uterus after birth and connected to the umbilical cord.
This organ unusually expresses the nonclassical MHC class I antigens
placenta [prompt on cyto- or extravillous trophoblasts]