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Free Blastocyst (without zona)

6 days

Source: Centro Riproduzione Assistita, Catania, Italy.

Note:

This close-up reveals the absence of the zona and the large size of the blastocyst cavity. The inner cell mass is tiny by comparison.

Label Key:

1. inner cell mass
2. blastocyst cavity
All ages referenced to fertilization, not last menstrual period.
Hatched Blastocyst
Hatched Blastocyst
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


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