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