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25 Cards in this Set

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What is at the anterior region of each vertebra that is the weight-bearing structure of each vertebra?
Body
What is posterior to the vertebral body which makes up the laminae and pedicles?
Vertebral arch
What structures makeup the vertebral arch?
2 supporting pedicles and 2 arched laminae
What is the hollow space formed by the neural arch and body?
Vertebral foramen
What is vertebral canal?
Collectively, all the stacked vertebral foramina form a superior-to-inferior directed hole that contains the delicate spinal cord.
What is located between the pedicles of adjacent vertebrae?
intervertebral foramina
what purpose does the structure of the intervertebral foramina serve?
Allows a horizontally directed passageway through which spinal nerves travel to other parts of the body.
What are the 7 processes that arise from the vertebral arch?
Spinous process
2 transverse processes
2 superior articular processes
2 inferior articular processes
What projects posteriorly and inferiorly from the laminae of the vertebral arch?
The spinous process
What is the purpose of the spinous process in the vertebral column?
Muscle attachment and ligament attachment
What extend laterally from each side of the vertebral arch?
Transverse processes
What processes serve for muscle attachment and, in the case of T1-T12 provide for rib attachment along with the body of the vertebrae?
Transverse processes
What interlock with the superior articular processes of the adjacent below vertebra?
2 inferior articular processes.
What does the interlocking of the superior articular processes and the inferior articular processes help do?
Limit twisting of the vertebral column.
What interlocks with the inferior articular processes of the adjacent above vertebra?
superior articular processes
What are the adjacent vertebral bodies, that are interconnected by ligaments, seperated by?
Intervertebral discs
What is the outer ring of the intervertebral disc composed of?
Fibrocartilage (ANULUS FIBROSUS)
What is the inner circular core of the intervertebral disc composed of?
A gelatinous consistency (NUCLEUS PULPOSUS)
The intervertebral discs make up approximately what height of the entire vertebral column?
1/4
What do the intervertebral discs do for the vertebral column that allow for flexibility between the vertebrae?
They act as shock absorbers
How does a herniated disc occur?
Occurs when the gelatinous nucleus pulposus protrudes into or through the anulus fibrosis. This herniation produces a "bulging" of the disc posterolaterally into the vertebral canal and pinches the spinal cord and/or nerves of the spinal cord.
What is sciatica and how is it associated with a herniated disc?
If the disc starts to pinch nerve fibers, the patient may feel pain down the enter lower limb.
Where is the most common disc rupture located?
between vertebrae L4 and L5
what is microdiscectomy?
A surgical technique whereby the herniated portion of the disc is removed
What is a discectomy?
A more invasive technique when compared to microdiscectomy where the laminae of the nearby vertebrae and the back muscles are incised before removing the herniated portions of the disc.