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Implantation and HCG


 

9 days

Buy NowFrom The Biology of Prenatal Development.

Script: After traveling down the uterine tube, the early embryo embeds itself into the inner wall of the mother's uterus. This process, called implantation, begins 6 days and ends 10 to 12 days after fertilization.

Cells from the growing embryo begin to produce a hormone called human chorionic gonadotropin, or hCG, the substance detected by most pregnancy tests.

All ages referenced to fertilization, not last menstrual period.
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Implantation and HCG
Implantation and HCG
Heart and Circulatory System
Heart and Circulatory System
The Folding of the Embryo
The Folding of the Embryo
The Folding of the Embryo
The Folding of the Embryo
Heart Development
Heart Development
The Embryo and Yolk Sac
The Embryo and Yolk Sac
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