What is the central ray angulation for the PA axial projection of the mandibular rami?

All of the following are facial bones, except : 

How far is the top of the 14×17 inch (35 x 43cm) IR or collimated field placed above the upper border of the shoulder for projections of the ribs?

For an AP shoulder, with the arm in external rotation, the CR will be centered at the level of:

For the AP axial projection of the clavicle, without the patient being in lordosis, the CR passes at the level of the clavicle at:

The cranial bones are rigidly jointed together by fibrous joints called:

Which of the following is true regarding the protocol for an AP axial (Towne) projection of the skull? CR enters 1/2 inch above the glabella CR will pass at the level of the EAM CR will be angled 30 degrees when the OML is made perpendicular to the IR

The oblique projection of the elbow (medial rotation) is performed to better visualize _____ in profile, which may not be accomplished in the other projections of the elbow.

The central ray for an AP axial projection of the coccyx is:

The scapular Y projection of the shoulder demonstrates:an oblique projection of the scapulaanterior or posterior dislocationa lateral projection of the scapula