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in the uterus. In endometrium.
When an embryo (fertilized egg) reaches the uterus, it is a hollow ball of about 100 cells called a blastocyst.
In the Endometriual layer of the Uterus
The fertilized ovum moves through the fallopian tube to the uterus. Once at the uterus the blastocyst floats around until it finds a spot on the uterine lining to implant.
Once the egg is fertilized the outer cells of the blastocyst (Blastocyst is the early stage in the developing embryo) will absorb nutrients from your endometrium (which is the wall of the uterus). The Blastocyst completes attachment to the uterus about 7 days after fertilization. It burrows into the walll of the uterus and adheres; some women experience spotting during this stage. The outer cells of the blastocyst will become the placenta and umbilical cord. That is what attaches the embryo to the uterus. Hope this helps!
A blastocyst.
A blastocyst.
After sperm penetration and successful fertilization of the egg cell, it will become a progressively dividing cell called blastocyst. It will travel the length of the fallopian tube until it reaches the uterus and implant itself in the endometrium.
A fertilized egg implants into the Uterus.
nidate
endomertium
the uterus