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Upper and Lower Limb Buds

4 weeks, 6 days
From The Biology of Prenatal Development.Buy Now

Note:

From humble beginnings, these limb buds will soon give rise to all my fingers and toes, and the rest of my arms and legs.

Label Key:

  • 1. right upper limb bud
  • 2. spine
  • 3. right lower limb bud
  • 4. lowermost spine
  • 5. blood vessel within umbilical cord

All ages referenced to fertilization, not last menstrual period.
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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)
Heart and Brain
Heart and Brain
( 5 weeks, 6 days)
Head and Heart
Head and Heart
( 5 weeks, 6 days)
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