General organization of a vertebra Flashcards
What is the general shape of the vertebral body at each region of the spine?
cervical - rectangular; thoracic - triangular; lumbar - reniform
What is the name given to the compact bone at the superior and inferior surfaces of the vertebral body?
superior epiphyseal rim, inferior epiphyseal rim
What is the name given to the intermediate part of the vertebral arch where the transverse process and articular processes attach?
lamina - pedicle junction
What is the generic orientation of the pedicle at each region of the spine?
cervical - posterolateral; thoracic - posterior, slight lateral; lumbar - posterior
What ligament will attach to the lamina?
ligamentum flavum
What is the name given to abnormal bone at the attachment site of the ligamentum flavum?
para-articular process
what classification of bone will para-articular processes represent?
accessory bone
what is the name given to the overlap of laminae seen on X-ray?
shingling
What is the name given to the lamina - pedicle junction at each region of the spine?
cervical - articular pillar; thoracic and lumbar - pars interarticularis
What is the name given to the junction of the vertebral arch - spinous process on lateral X-ray?
spinolaminar junction
What is the generic orientation of the transverse process or transverse apophysis at each region of the spine?
cervical - anterolateral; thoracic - posterolateral; lumbar - lateral
All non-rib bearing vertebra of the spine retain what equivalent feature?
costal element
What will cause the transverse process/transverse apophysis to alter its initial direction in the cervical region?
cervical spinal nerves are pulled forward to form the cervical and brachial nerve plexuses thus remodeling the transverse process to accommodate their new position
what will cause the transverse process/transverse apophysis to alter its initial direction in the thoracic region?
growth of the lungs remodel the shape of the ribs which in turn push the transverse processes backward
what is the name given to the joint formed between articular facets of a vertebral couple?
zygapophysis
What will form the posterior boundary of a typical intervertebral foramen?
the inferior articular process/post-zygapophysis, the superior articular process/pre-zygapophysis, the capsular ligament, the ligamentum flavum
What will form the superior boundary of a typical intervertebral foramen?
inferior vertebral notch or inferior vertebral incisure
what will form the inferior boundary of a typical intervertebral foramen?
the superior vertebral notch or superior vertebral incisure
What will form the anterior boundary of a typical intervertebral foramen?
vertebral body of the segment above, the vertebral body of the segment below, the intervertebral disc, and the posterior longitudinal ligament
what is the method of calculating the angle of the spinous process/spinous apophysis?
calculate the angle formed between the undersurface of the spinous process/spinous apophysis and the horizontal plane
what is the name given to the normal overlap of spinous processes or spinous apophyses as seen on X-ray?
imbrication
what is the orientation of the spinous process/spinous apophysis at each region of the spine?
cervical - slight angle inferiorly; thoracic - noticeable angle inferiorly; lumbar - no inferior angle