In terms of bone classification, what are vertebrae examples of?

Vertebrae are classified as irregular bones because of their unique and complex shapes that do not fit into the other categories of bone classification. Irregular bones are characterized by their non-uniform shape and are often designed to fulfill specific functions in the body. In the case of vertebrae, their structure is adapted to provide flexibility and support to the spine while also protecting the spinal cord. This classification also distinguishes them from flat bones, long bones, and short bones, which have more standardized shapes and functions. Flat bones, for example, are primarily involved in protection and muscle attachment, long bones support and facilitate movement, and short bones provide stability and support with limited motion. Therefore, the vertebrae's distinct shape and function underpins their classification as irregular bones.