Anatomy lecture 1 Flashcards
Supports the head but doesn’t have a body
Atlas C1
Transverse foramen & largest vertebral foramen
Cervical vertebrae (C1-C7)
Articulates with the atlas (dens)
Axis - allows for movement from side to side
Vertebrae with three sets of costal facets
Thoracic T1 - T12 ( transverse, inferior and superior costal facets)
Vertebrae with a large body and Mammillary process
Lumbar Vertebrae (L1 - L5)
Spondylolysis
Degeneration or defect of a portion of the vertebra (commonly a stress fracture of L5); involves the pars interarticularis. Pars interarticularis is between the superior and inferior articular processes!
Spondylolisthesis
Forward slipped body of one of the lower lumbar vertebrae on the vertebra below it, or upon the sacrum (L5-S1).
Lamina
Posterior part of the spinal ring
Found in all three vertebrae
Laminectomy – lamina is removed in order access the spinal cord
Spinous process
Posterior
On all vertebrae types
Point of attachment for muscles and ligaments of the spine
Pedicle
Connects the lamina to the vertebral body to form the vertebral arch
Found on all vertebrae
Inferior articular process (arch)
Superior articular process (arch)
Purpose of the facet is to fit with adjacent vertebrae
(Line up w/ superior vertebrae’s inferior articular process)
Posterior to the vertebral foramen
Intervertebral foramen
IF: Space between vertebrae
Located under each pedicle
Spinal nerves exit through the intervertebral foramen
VF: the opening in a single vertebra that the spinal canal passes through
Inferior vertebral notch
Superior vertebral notch
IVN: Located on the bottom of each pedicle
SVN: Located on the top of each pedicle
Between L5 and the coccyx
Forms the back wall of the pelvic girdle. Includes 5 bones that are fused (first 3 fused bones have transverse processes that form the Ala
Sacrum
Sacral hiatus
The opening into the vertebral canal in the midline of the dorsal surface of the sacrum between the laminae of the fifth sacral vertebra. Exposes the vertebral canal