has part has part characteristic of part of inheres in part of has modifier Abnormalities of placenta or umbilical cord Abnormal placenta morphology 2011-06-07T11:03:03Z An abnormality of the placenta, the organ that connects the developing fetus to the uterine wall to enable nutrient uptake, waste elimination, and gas exchange. Placental issue UMLS:C1306893 SNOMEDCT_US:169957005 The placenta is a fetomaternal organ. The fetal portion of the placenta is the villous chorion and the maternal portion is the decidua basalis. The two portions are connected by anchoring villi that are anchored to the decidua basalis by the cytotrophoblastic shell. HP:0100767 SNOMEDCT_US:33552005 Abnormality of the placenta quality abnormal placenta