In amphibians, the pelvic girdle is attached to one vertebra. In the early reptiles, the pelvic girdle broadened its attachment to the vertebral column. Two vertebrae are used to support the pelvic ...

Northwestern Medicine scientists have uncovered new details about how the spinal column forms in developing vertebrates, according to a study published in Developmental Cell. While it has been ...

In order to be included in this analysis, studies had to report dissection frequency for at least 3 vertebral artery segments. Very few data were available comparing different imaging modalities ...