Image Gallery
Upper and Lower Limb Buds
![Upper and Lower Limb Buds [Click for next image]](/images/prenatal_unlabeled_655/upper-and-lower-limb-buds.jpg "Click for next image")
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Note:The limb buds first appear around 4 weeks after fertilization. These humble buds will give rise to complete fingers and toes, elbows and knees, and arms and legs—all in the next three to four weeks!Label Key:1. right upper limb 2. spine 3. right lower limb bud with marginal vein 4. tip of lower spine (caudal eminence) 5. umbilical vein within umbilical cord | ||
| All ages referenced to fertilization, not last menstrual period. |
Heart and Liver
Head and Neck
Upper and Lower Limb Buds
Head and Heart
Upper and Lower Limb Buds
The Lower Embryo
