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Ch 10
Lumbar/Sacrum/Coccyx - Scotty dog
Question | Answer |
---|---|
What radiograph position of the lumbar spine shows an appearance of a Scotty dog? | a good 45 degree oblique |
What forms the nose of the Scotty dog? | transverse process |
What forms the eye of the Scotty dog? | one pedicle seen on end |
What forms the neck of the Scotty dog? | pars interarticularis |
What forms the front leg of the Scotty dog? | one inferior articular process |
What forms the pointed ear of the Scotty dog? | one of the superior articular processes |
What does the front leg and ear of the Scotty dog form? | zygapophyseal joint |
What positioning error will demonstrate the pedicle (eye of the Scotty dog) to appear more posteriorly on the vertebral body? | overrotation |
What positioning error will demonstrate the pedicle (eye of the Scotty dog) to appear more anteriorly on the vertebral body? | underrotation |
Where is the pedicle (eye of the Scotty dog) located on a correct 45 degree rotated oblique? | near the center of the vertebral body on the radiographic image |