<P> The vertebral arch is formed by pedicles and laminae . Two pedicles extend from the sides of the vertebral body to join the body to the arch . The pedicles are short thick processes that extend , one from each side , posteriorly , from the junctions of the posteriolateral surfaces of the centrum , on its upper surface . From each pedicle a broad plate , a lamina , projects backwards and medialwards to join and complete the vertebral arch and form the posterior border of the vertebral foramen , which completes the triangle of the vertebral foramen . The upper surfaces of the laminae are rough to give attachment to the ligamenta flava . These ligaments connect the laminae of adjacent vertebra along the length of the spine from the level of the second cervical vertebra . Above and below the pedicles are shallow depressions called vertebral notches ( superior and inferior ) . When the vertebrae articulate the notches align with those on adjacent vertebrae and these form the openings of the intervertebral foramina . The foramina allow the entry and exit of the spinal nerves from each vertebra , together with associated blood vessels . The articulating vertebrae provide a strong pillar of support for the body . </P>
<P> The vertebral arch is formed by pedicles and laminae . Two pedicles extend from the sides of the vertebral body to join the body to the arch . The pedicles are short thick processes that extend , one from each side , posteriorly , from the junctions of the posteriolateral surfaces of the centrum , on its upper surface . From each pedicle a broad plate , a lamina , projects backwards and medialwards to join and complete the vertebral arch and form the posterior border of the vertebral foramen , which completes the triangle of the vertebral foramen . The upper surfaces of the laminae are rough to give attachment to the ligamenta flava . These ligaments connect the laminae of adjacent vertebra along the length of the spine from the level of the second cervical vertebra . Above and below the pedicles are shallow depressions called vertebral notches ( superior and inferior ) . When the vertebrae articulate the notches align with those on adjacent vertebrae and these form the openings of the intervertebral foramina . The foramina allow the entry and exit of the spinal nerves from each vertebra , together with associated blood vessels . The articulating vertebrae provide a strong pillar of support for the body . </P>
the pedicles laminae and spinous process of a vertebra form the
the pedicles laminae and spinous process of a vertebra form the
vertebral arch
vertebral arch