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Upper and Lower Limb Buds

4 weeks, 6 days


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
From The Biology of Prenatal Development.Buy Now
All ages referenced to fertilization, not last menstrual period.
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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Free resources and training for educators
Buy the Biology of Prenatal Development DVD