ACTUAL Questions and CORRECT
Answers
The intervertebral foramina of lumbar spine are located at an angle of ___ in relation to the
MSP? - CORRECT ANSWER - 90 degrees
The small section of bone found between the superior and inferior articular processes of the
lumbar spine is termed ? - CORRECT ANSWER - Pars interarticularis
The zygapophyseal joints of the upper lumbar vertebrae are __ in relationship to the MSP? -
CORRECT ANSWER - 50 degree
The anterior projecting bony process of the sacrum that forms part of the inlet of the true pelvis
is called? - CORRECT ANSWER - Promontory of the sacrum
Another term for the sacral horns is ? - CORRECT ANSWER - Cornu of the sacrum
Which specific aspect of the sacrum articulates with the ilium to form the SI joints? - CORRECT
ANSWER - Auricular surface
Which of the following structure of the sacrum is considered to be the most posterior? -
CORRECT ANSWER - Medial sacral crest
What is the term for the superior aspect of the coccyx? - CORRECT ANSWER - Base
What is the joint classification of the zygapophyseal joints? - CORRECT ANSWER -
Synovial and diarthrodial
, Which topographic landmark corresponds with the level of L4-L5 ? - CORRECT
ANSWER - Iliac crest
Which of the following structures is located at the level of ASIS? - CORRECT ANSWER -
S1-S2
Scottie dog image-nose - CORRECT ANSWER - Transverse process (A)
Scottie dog image- eye - CORRECT ANSWER - Pedicle (b)
The average degree of rotation required to demonstrate the L3-L4 zygapophyseal joints is? -
CORRECT ANSWER - 45 degrees
Why should the hips and knees be flexed for an AP projection of the lumbar spine? - CORRECT
ANSWER - To reduce lumbar curvature and patient comfort
Which of the following should be done to reduce scatter radiation from reaching the IR for the
lateral lumbar, sacrum, and coccyx projections? - CORRECT ANSWER - Place lead mat
on the tabletop behind the patient
Which of the following statements is NOT true about the lateral L5-S1 projection? - CORRECT
ANSWER - A 14x17 IR is required
A key advantage of a PA projection taken during a pediatric scoliosis study as compared with the
AP projection is? - CORRECT ANSWER - It reduces breast and thyroid dose by 90%
Where is the CR centered for an AP axial projection of the sacrum? - CORRECT
ANSWER - 2" above symphysis pubis
What type of CR angulation is required for an AP axial projection of the coccyx? - CORRECT
ANSWER - 10 degrees caudad