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This text explores the intricate components of early embryonic development, focusing on structures like the placenta, amnion, chorion, and umbilical cord. It explains the roles of trophoblasts and chorionic villi, as well as crucial milestones like the zygote, morula, and embryo formation. The text aims to clarify the significance of the inner cell mass, amniotic cavity, and their related functions in nurturing the developing fetus. This overview serves as a foundation for understanding human reproduction and prenatal development.
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What is this area? placenta
trophoblasts What are these outer cells?
What are these fingerlike projections? Chorionic villi
Inner cell mass What are these?
What is this? fetus
amnion What is this membrane?
Umbilical cords What are these?
chorion What is this outermost layer?
blastocyst What is this entire thing?
What is this? chorion
Chorionic villi What are these?
zygote What is this?
amnion What is this inner membrane?
embryo What is this?
Amniotic cavity What is this space?
morula What is this?
What is this? Umbilical cord
fetus What is this?
Amniotic cavity What is this space?