Development of the Placenta 0.0 / 5 ? MedicineEmbryologyUniversityNone Created by: Juliana_mpCreated on: 18-08-21 08:50 condition of excess amniotic fluid exceeding 1.5 liters Polyhydramnios 1 of 22 Too little amniotic fluid Oligohydramnios 2 of 22 Its wall is composed of two layers of trophoblast lined by extraembryonic somatic mesoderm Chorionic sac 3 of 22 Core of secondary villi Extraembryonic somatic mesoderm 4 of 22 Core of primary villi Cytotrophoblast 5 of 22 All chorionic villi possess an outer layer of Syncytiotrophobast 6 of 22 Feature of mature chorion Cytotrophobast shell 7 of 22 As secondary chorionic villi become vascularized, they become known as ...... villi. tertiary 8 of 22 Chorion laeve is covered by Decidua capsularis 9 of 22 Smooth chorion fuses with .... as decidua capsularis disappears Decidua parietalis 10 of 22 ...... blood does not enter intervillous space Fetal 11 of 22 Chorion frondosum and decidua basalis make up Placenta 12 of 22 umbilical cord attaches to the fetal membranes Velamentous insertion 13 of 22 umbilical cord inserts onto the margin of placenta battledore placenta 14 of 22 mucopolysaccharide material surrounding the umbilical vessels Wharton's jelly 15 of 22 Surrounds the embryo, yolk sac and amniotic sac during the embryonic period, later obliterated by amniotic sac Chorionic cavity 16 of 22 Functional units of placenta Chorionic villi 17 of 22 Septae divide placenta into Cotyledons 18 of 22 Condition in which placenta may detach and cause severe bleeding and fetal anoxia during delivery. Placenta praevia 19 of 22 allows blood from the placenta to bypass the liver in utero Ductus venosus 20 of 22 Connects fetal gut with yolk sac Vitelline duct 21 of 22 Made by syncytiotrophoblast and maintains corpus luteum HCG 22 of 22
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