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Hatched Blastocyst

6 days

Source: Centro Riproduzione Assistita, Catania, Italy.

Note:

Can you see the defect in the zona through which the embryo escaped?

Label Key:

  • 1. shell of zona
  • 2. free embryo at blastocyst stage
  • 3. inner cell mass

All ages referenced to fertilization, not last menstrual period.
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Hatched Blastocyst
Hatched Blastocyst
Free Blastocyst  (without zona)
Free Blastocyst (without zona)
Embryo Cross Section 8-9 Days
Embryo Cross Section 8-9 Days
Embryo at About 11 Days
Embryo at About 11 Days
Tube Shaped Heart
Tube Shaped Heart
Three-Week Embryo
Three-Week Embryo
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