An optimally positioned lateral cervical vertebrae projection demonstrates all the following except
a. no more than 0.25 inch (0.63 cm) of separation between the right and left side zygapophyseal joints.
b. superimposition of the anterior and posterior aspects of the right and left side ar-ticular pillars.
c. the posterior arch of C1 and the spinous process of C2 in profile without posterior occiput superimposition.
d. open intervertebral disk spaces.
Question 2
An AP axial cervical vertebrae projection demonstrates a portion of the third cervical vertebra superimposed over the posterior occipital bone. How should the positioning setup be adjusted to obtain an optimal projection?
a. Center the central ray more inferiorly.
b. Increase the degree of cephalic central ray angulation.
c. Decrease the degree of chin tuck.
d. Increase the degree of chin tuck.
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