Skip Navigation
The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
Donate Now Get Free Videos

Image Gallery

The Lower Limbs and Back

5 weeks, 2 days

From The Biology of Prenatal Development.Buy Now

Note:

The limb buds are about to enter a stage of rapid growth and development.

Label Key:

1. amnion
2. spine
3. trunk
4. right upper limb bud
5. right lower limb bud
6. tail (caudal eminence)
7. left lower limb bud
All ages referenced to fertilization, not last menstrual period.
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
Central Nervous System
Central Nervous System
Brain and Spinal Cord
Brain and Spinal Cord
Central Nervous System
Central Nervous System
When does health begin? Find out now.
Free resources and training for educators