Scientists have assigned numbers to each
vertebra, from the top of the spine to the bottom.
The bodies of vertebrae, thus formed by metamerism can be fused partially or completely, such a fusion of vertebral bodies is called vertebralsynostosis or spinal fusion or block
vertebra.
The pedicle of the
vertebra has been widely used as a fixation site for vertebral implants.
vertebra prominens, and the level is identified from the developed radiograph.
However, it was not always possible to determine if a fossil represented a posterior trunk or a precloacal
vertebra.
If a predator grabbed hold of one of these reptiles, the
vertebra would break at the crack and the tail would drop off, allowing the captorhinid to escape relatively unharmed," said Robert Reisz , a professor of biology at University of Toronto and co-author of the new study said.
The number of thoracolumbar vertebrae is associated with body length and carcass traits, and represents an important economical trait in livestock, because one extra
vertebra expands the carcass length (CL) up to 80 mm in pig [6].
Although the incidence of male dogs was higher in this study, the statistical evaluation did not confirm any predisposed gender, and we found no statistically significant predisposition for any particular abnormal
vertebra.
Its incidence in thoracic
vertebra is the highest (70%), followed by lumbar
vertebra (20%) and cervical
vertebra (10%).
