Search this site
Sponsored Links
Center for Advanced Spinal Neurosurgery - visit
Neurography Institute - visit

Accidents of the Embryo:

Spina Bifida and Variations at Birth

Chapter 8

Lumbar Vertebral Number Abnormalities
These lumbar X-ray myelograms show a comparison between a person with only four lumbar vertebrae and a person with six lumbar vertebrae. The great majority of humans have five lumbar vertebrae.