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Slideshow: Entire Image Gallery by EHD
Three-Cell Embryo
#42, Slide 18 of 312
40 hours
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Source:
Centro Riproduzione Assistita, Catania, Italy
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Label Key:
1. blastomere #1
2. blastomere #2
3. blastomere #3
4. perivitelline space
5. zona pellucida
6. polar body
All ages referenced to fertilization, not last menstrual period.