Skip Navigation

Little One Pregnancy Calendar & Journal
Log in

Baby’s Pregnancy Calendar

The Lower Embryo

4 weeks old / 6 weeks pregnant (since LMP)

Note:

The amnion is particularly well seen here.

Label Key:

  • 1. chest wall
  • 2. heart
  • 3. wall of the womb
  • 4. blood vessels of the placenta
  • 5. umbilical cord
  • 6. liver
  • 7. amnion
  • 8. wall of the belly
From The Biology of Prenatal Development.Buy Now
The Lower Embryo
The Lower Embryo
The Lower Limbs and Back
The Lower Limbs and Back
Brain and Spinal Cord
Brain and Spinal Cord
Heart and Brain
Heart and Brain
Head and Heart
Head and Heart
Close-up of Heart and Liver
Close-up of Heart and Liver
Previous Set Previous Picture Next Set Next Picture