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د.اسماء
The content covers the stages of implantation starting from fertilization to the formation of the placenta. It details the cleavage of the zygote, the formation of the morula and blastocyst, and the subsequent embedding of the blastocyst into the uterine wall. The document also explains the changes in the endometrium during the implantation process and the formation of chorionic villi essential for placental function.
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