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Four-Cell Human Embryo

48 hours

Buy NowFrom The Biology of Prenatal Development.

Label Key:

  • 1. perivitelline space
  • 2. zona pellucida
  • 3. blastomeres

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