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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.
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Free Blastocyst  (without zona)
Free Blastocyst (without zona)
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Embryo Cross Section 8-9 Days
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