Refer to the labeled illustration of the landmarks of the cranium below.  The AML is represented by which numbered structure? Lat 2(2).jpg

What is the average central ray angulation for the PA axial (Haas) projection of the skull?

Which sinus group is of primary importance in the lateral projection of the sinuses?

Which of the following lines is placed perpendicular to the plane of the IR for the AP axial projection of the TMJ articulations?

The central ray forms an angle of how many degrees with the OML for the PA axial projection of the sinuses?

Which of the following sinus projections are performed with the patient PA? Caldwell SMV Waters

Both zygomatic arches can be demonstrated on one projection for which of the following projections? Tangential SMV AP axial

What projection of the TMJ’s is demonstrated in the following radiographic image? 021055 not labeled.jpg

Which of the following should be clearly demonstrated on the following projection of the paranasal sinuses? 022010B with paint.jpg all four sinus groups superimposed orbital roofs superimposed mandibular rami

In an adult, the average angle difference that exists between the OML and the IOML is _____.