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L - spine anatomy
L - spine anatomy for comp
Question | Answer |
---|---|
Vertebral arch | posterior ring like portion |
Vertebral foramen | the space enclosed by the vertebral arch and body |
What forms the vertebral arch? | two pedicles and two lamina |
Vertebral notch | the concave superior and inferior surfaces of the pedicles |
Intervertebral foramina | formed by the vertebral notches of a superior and inferior vertebrae |
Laminae (L-spine) | thick, project posteriorly from the pedicles running from the transverse process to the spinous process. |
Superior and inferior articular processes | arise from the junction of the pedicle and lamina to articulate with the vertebrae above and below |
The superior articular process has a facet where? | on the posterior surface |
The inferior articular process has a facet where? | on the anterior surface |
Zygapophyseal joint | the articulation between the superior and inferior articular facet |
The transverse processes of L1-L3 are directed: | laterally |
The transverse processes of L4-L5 are directed: | superiorly |
The pedicles are directed: | posteriorly |
Pars interarticularis | portion of the lamina located between the superior and inferior articular process |
Mamillary process | smooth rounded process on the back of each superior articular process |
Accessory process | near the point of attachment on the transverse process, posteriorly |
How do the zygapophyseal joints lie to the MSP? | 30-60 degrees |
How do the intervertebral foramina lie to the MSP? | perpendicular |
the ear of the scotty dog represents what? | the superior articular process |
the nose of the scotty dog represents what? | transverse process |
the eye of the scotty dog represents what? | pedicle |
the neck of the scotty dog represents what? | pars interarticuaris |
the body of the scotty dog represents what? | lamina |
the foot of the scotty dog represents what? | inferior articular process |
intervertebral joint space type | cartilaginous symphysis |
zygapophyseal joint space type | synovial gliding |
sacroiliac joint type | irregular gliding |