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Five-Cell Embryo

50 hours

Source: Centro Riproduzione Assistita, Catania, Italy.

Note:

Counting the number of blastomeres is not so easy anymore.

Label Key:

  • 1. zona pellucida
  • 2. perivitelline space

All ages referenced to fertilization, not last menstrual period.
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Five-Cell Embryo
Five-Cell Embryo
Six-Cell Embryo
Six-Cell Embryo
Seven-Cell Embryo
Seven-Cell Embryo
Eight-Cell Embryo
Eight-Cell Embryo
Nine-Cell Embryo
Nine-Cell Embryo
Ten-Cell Embryo
Ten-Cell Embryo
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