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Amnion

4 weeks, 6 days


Note:

I live inside a bubble called the amnion. You can see it if you look carefully.

Label Key:

  • 1. blood vessels of the placenta
  • 2. wall of womb
  • 3. brain
From The Biology of Prenatal Development.Buy Now
All ages referenced to fertilization, not last menstrual period.
Amnion
Amnion
( 4 weeks, 6 days)
Heart and Liver
Heart and Liver
( 4 weeks, 6 days)
Upper and Lower Limb Buds
Upper and Lower Limb Buds
( 4 weeks, 6 days)
The Lower Embryo
The Lower Embryo
( 4 weeks, 6 days)
The Lower Limbs and Back
The Lower Limbs and Back
( 5 weeks, 2 days)
Brain and Spinal Cord
Brain and Spinal Cord
( 5 weeks, 2 days)
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