The transverse processes of the vertebral column are projections of bone that arise from the same place as the articular processes and travel laterally. This process can extend superiorly to form the superior articular process, or inferiorly to form the inferior articular process.Īt the tips of these articular processes are articular facets, which form a (zygapophyseal) joint with adjacent vertebrae to improve stability within the vertebral column. The articular processes are small protrusions of bone extending from the junction between the pedicles and laminae. The laminae have a postero-inferior extension known as the spinous process. When the lamina and pedicles are referred to collectively, they are known as the vertebral arch. The vertebral arch forms the posterior margin of the spinal canal. The vertebral arch refers to the semicircular ring of bone that connects the two vertebral pedicles.
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