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Head and Neck

4 weeks, 6 days

Buy NowFrom The Biology of Prenatal Development.

Label Key:

  • 1. 1st pharyngeal arch (maxillary process)
  • 2. stomodeum
  • 3. 1st pharyngeal arch (mandibular process)
  • 4. 2nd pharyngeal arch
  • 5. hindbrain
  • 6. forebrain
  • 7. heart
  • 8. auricular groove
  • 9. right anterior cardinal vein

All ages referenced to fertilization, not last menstrual period.
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Head and Neck
Head and Neck
Upper and Lower Limb Buds
Upper and Lower Limb Buds
Head and Heart
Head and Heart
Upper and Lower Limb Buds
Upper and Lower Limb Buds
The Lower Embryo
The Lower Embryo
Yolk Sac and Vitelline Vessels
Yolk Sac and Vitelline Vessels
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