LRA 224 week 1 quiz questions and
correct answers
Identify the structure that is represented by the letter (D)
Posterior arch of C1
Which anatomical structures must be aligned perpendicular to the IR for an AP open-mouth projection
to ensure proper XR
The upper incisors and the base of the skull
When shoulders can't be depressed on a lateral projection of the cervical spine, what projection would
visualize C7 & T1
Lateral, swimmers' technique
An oblique projection of the cervical spine will demonstrate the: (Select all that apply)
Intervertebral Foramina
Pedicles
Where should the central ray be directed for this radiograph?
•The thyoid bone and C4
For an erect lateral cervical spine projection, which line should be parallel with the patients mandible?
AML (Acanthiomeatal Line)
What is the appropriate positioning of the arms for the projection demonstrated in the following
radiograph?
Arm closest to IR raised, arm away down and slightly posterior
correct answers
Identify the structure that is represented by the letter (D)
Posterior arch of C1
Which anatomical structures must be aligned perpendicular to the IR for an AP open-mouth projection
to ensure proper XR
The upper incisors and the base of the skull
When shoulders can't be depressed on a lateral projection of the cervical spine, what projection would
visualize C7 & T1
Lateral, swimmers' technique
An oblique projection of the cervical spine will demonstrate the: (Select all that apply)
Intervertebral Foramina
Pedicles
Where should the central ray be directed for this radiograph?
•The thyoid bone and C4
For an erect lateral cervical spine projection, which line should be parallel with the patients mandible?
AML (Acanthiomeatal Line)
What is the appropriate positioning of the arms for the projection demonstrated in the following
radiograph?
Arm closest to IR raised, arm away down and slightly posterior
