The respiration phase for the "open mouth" AP projection of the atlas and axis is:
A) inspiration.
B) expiration.
C) suspended respiration.
D) softly phonate "ah" during the exposure.

Question

Quizplus · Accepted Answer

Softly phonating "ah" during the exposure helps to depress the tongue and prevent it from obscuring the view of the atlas and axis in the open mouth AP projection.

The Respiration Phase for the "Open Mouth" AP Projection of the Atlas