Maternal Preparation: The Decidua
: The trophoblast divides into two layers: the inner cytotrophoblast and the outer syncytiotrophoblast. The latter invades maternal blood vessels, creating lacunae (spaces) that eventually fill with maternal blood to facilitate nutrient exchange.
Initially, the placental membrane (barrier) is thick, consisting of four layers: Syncytiotrophoblast Cytotrophoblast Connective tissue (mesoderm) of the villus Endothelium of fetal capillaries
The development of villi is the "engine" of placental growth. This occurs in three stages:
Maternal Preparation: The Decidua
: The trophoblast divides into two layers: the inner cytotrophoblast and the outer syncytiotrophoblast. The latter invades maternal blood vessels, creating lacunae (spaces) that eventually fill with maternal blood to facilitate nutrient exchange. Development Of Placenta Ppt
Initially, the placental membrane (barrier) is thick, consisting of four layers: Syncytiotrophoblast Cytotrophoblast Connective tissue (mesoderm) of the villus Endothelium of fetal capillaries Maternal Preparation: The Decidua : The trophoblast divides
The development of villi is the "engine" of placental growth. This occurs in three stages: the placental membrane (barrier) is thick