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The Endowment for Human Development
The Endowment for Human Development
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Slideshow: Entire Image Gallery by EHD

#17, Slide 39 of 312

 

Note:

Implantation begins when the embryo attaches to the wall of the uterus approximately six days after fertilization. Once attached, it begins embedding itself into the wall.

Label Key:

1. uterine wall inside the womb
2. embryo at blastocyst stage making its way into the wall of the uterus (early implantation)
All ages referenced to fertilization, not last menstrual period.
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