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Head and Heart

4 weeks, 6 days

Buy NowFrom The Biology of Prenatal Development.

Note:

If you look just above the heart, it seems like you can look right through the chest.

Label Key:

  • 1. forebrain
  • 2. 1st pharyngeal arch (maxillary process)
  • 3. mouth (stomodeum)
  • 4. 1st pharyngeal arch (mandibular process)
  • 5. auricular groove
  • 6. 2nd pharyngeal arch
  • 7. 3rd pharyngeal arch
  • 8. chest wall
  • 9. liver
  • 10. heart
  • 11. cervical sinus

All ages referenced to fertilization, not last menstrual period.
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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
Vitelline Vessels and Yolk Sac
Vitelline Vessels and Yolk Sac
The Lower Limbs and Back
The Lower Limbs and Back
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