For which projection is the patient instructed to softly phonate ah during the exposure?
AP open mouth atlas and axis
Which line must be perpendicular to the IR for the AP open mouth atlas and axis
Line drawn from the lower edge of the upper incisors to the tip of the mastoid process
The thyroid cartilage generally corresponds to the level of?
C4-C6
How much is the body rotated for AP axial oblique projection of the cervical intervertebral foramina?
45 degrees
For which projection is the patient instructed to softly phonate ah during the exposure?
AP open mouth atlas and axis
When the OID long, scattered radiation that would expose the film at a short OID is scattered away from the film. Because much of the scattered radiation is not being directed toward the film, a grid is not needed to absorb the scatter
air gap technique
Where is the CR directed for an open mouth AP projection of the atlas and axis?
center of the IR perpendicular thru the open mouth
The SID for a lateral c spine must be a minimum of how many inches?
60-70
What is the CR angulation for the lat projection of the cervicothoracic region twining method when the shoulder can be depressed?
zero
Where should the center of the IR be positioned for the open mouth AP projection of the atlas and axis?
