What is a lamina in the context of the vertebral column?

A lamina, in the context of the vertebral column, refers specifically to a bony structure. The laminae are two thin, flat plates of bone that form the posterior part of the vertebral arch. They serve to protect the spinal cord by enclosing the vertebral foramen and provide a surface for attachment of ligaments and muscles that support the spine. This structural component is vital for the integrity and stability of the vertebrae, contributing to the overall architecture of the spine. The laminae also play a role in the formation of the vertebral canal, where the spinal cord resides, ensuring proper protection and support for neurological structures.