Medically reviewed by Geetika Gupta, MDMedically reviewed by Geetika Gupta, MD Skeletal system photos and labeled diagrams ..

The story of the evolution of the cranio-vertebral joint has been pieced together from evidence from embryology, paleontology and comparative anatomy. Several ancestral vertebrae were incorporated ...

The spine (aka backbone) is a linked column of bones running from the head down to the lower back. Bone segments form the column. One bone segment is a vertebra, and multiple bone segments are ...