the pedicles laminae and spinous process of a vertebra form the vertebral arch.
the pedicles laminae and spinous process of a vertebra form the vertebral arch.
the pedicles laminae and spinous process of a vertebra form the?
vertebral arch
the vertebral arch is composed of several anatomical features in addition to laminae that must be taken into account when performing a laminotomy. in the center of the vertebral arch is a bony projection called the spinous process. the spinous process is located on the posterior or back side of the vertebra and serves as the attachment point for ligaments and muscles which support and stabilize the vertebral column. each vertebra has two lateral bony projections called the transverse processes that are located on either side of the vertebral arch. transverse processes come into contact with the ribs and serve as attachment points for muscles and ligaments that stabilize the vertebral column. the lamina is the segment of bone that connects the spinous process to the transverse process. each vertebra has two lamina, one on each side of the spinous process.
laminotomy
the lamina is a posterior arch of the vertebral bone lying between the spinous process (which juts out in the middle) and the more lateral pedicles and the transverse processes of each vertebra. the pair of laminae, along with the spinous process, make up the posterior wall of the bony spinal canal. although the literal meaning of laminectomy is 'excision of the lamina', a conventional laminectomy in neurosurgery and orthopedics involves excision of the posterior spinal ligament and some or all of the spinous process. removal of these structures with an open technique requires disconnecting the many muscles of the back attached to them. a laminectomy performed as a minimal spinal surgery procedure is a tissue-preserving surgery that leaves more of the muscle intact and spares the spinal process. another procedure, called the laminotomy, is the removal of a mid-portion of one lamina and may be done either with a conventional open technique or in a minimalistic fashion with the use of tubular retractors and endoscopes.
laminectomy