As lâminas são segmentos póstero-laterais que se estendem dos pedículos à apófise espinhosa em um arco vertebral.
Meaning
The lamina of the spine (arcus vertebrae) is a thin bone plate extending posteriorly from the pedicles and fusing to provide the dorsal portion of the vertebral arch (surrounding the spinal cord), forming the base for the spinous process. (books.google.com.br - A...)