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Left Lateral View: 3-Week Embryo

3 weeks

Buy NowFrom The Biology of Prenatal Development.

Label Key:

  • 1. amnion
  • 2. cephalic end of the embryo (meaning "toward the head")
  • 3. yolk sac
  • 4. embryo proper
  • 5. amniotic cavity
  • 6. caudal end (meaning "toward the tail")
  • 7. umbilical cord

All ages referenced to fertilization, not last menstrual period.
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Left Lateral View: 3-Week Embryo
Left Lateral View: 3-Week Embryo
Three-Week Embryo
Three-Week Embryo
3-Week Embryo
3-Week Embryo
The Folding of the Embryo
The Folding of the Embryo
The 4-Week Embryo
The 4-Week Embryo
The Folding Heart
The Folding Heart
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