C9: Review Questions

Question 1

The portion of each lamina between the superior and inferior articular processes is termed:

Answer 1

pars interarticularis

Question 2

The eye of the “Scottie dog” represents the ____ of the lumbar vertebrae.

Answer 2

pedicle

Question 3

A congenital condition in which the posterior aspects of the vertebrae fail to develop is termed:

Answer 3

spina bifida

Question 4

Which of the following lumbar spine projections will best demonstrate the extent of a compression fracture?

Answer 4

lateral

Question 5

What type of CR angle is recommended for a lateral projection of the lumbar spine if the midabdomen is not supported?

Answer 5

5- to 8-degree caudad

Question 6

The zygapophyseal joints are classified as:

Answer 6

diarthrodial

Question 7

The intervertebral joints are classified as:

Answer 7

amphiarthrodial

Question 8

Which of the following topographic landmarks is the most frequently used when positioning the lumbar spine?

Answer 8

iliac crest

Question 9

Which topographic landmark is at the level of T9-T10?

Answer 9

xiphoid tip

Question 10

An inflammatory condition that usually begins in the sacroiliac joints and progresses up the vertebral column is termed:

Answer 10

ankylosing spondylitis

Question 11

A congenital condition in which the posterior aspects of the vertebrae fail to develop, exposing part of the spinal cord is termed:

Answer 11

spina bifida

Question 12

A congenital condition in which the posterior aspects of the vertebrae fail to develop, exposing part of the spinal cord is termed:

Answer 12

spina bifida

Question 13

The dissolution of a vertebra, such as from aplasia of the vertebral arch and separation of the pars interarticularis is termed:

Answer 13

spondylolysis

Question 14

Which spinal curvature is characterized by an abnormal concave lumbar curvature?

Answer 14

lordosis

Question 15

What type of CR angle is used for the AP axial L5-S1 projection of the lumbar spine for male patients?

Answer 15

30-degree cephalad

Question 16

What type of CR angle is used for the AP axial L5-S1 projection of the lumbar spine for female patients?

Answer 16

35-degree cephalad

Question 17

What type of CR angle is used for the AP axial projection of the sacrum?

Answer 17

15-degree cephalad, 2-inch superior to pubic symphysis

Question 18

What type of CR angle is used for the AP axial projection of the coccyx?

Answer 18

10-degree caudad, 2-inch superior to symphysis pubis

Question 19

What type of CR angle is used for the LPO and RPO projections of the sacroiliac joints?

Answer 19

no angle, perpendicular CR, 1 inch medial to upside ASIS

Question 20

The AP and lateral projection of the lumbar spine with a CT is the most common radiographic examination for which pathology?

Answer 20

compression fracture, spondylolisthesis, and chance fracture