Which of the following is/are true regarding the positioning for the parietoacanthial projection (Waters) for the facial bones? MSP is perpendicular to the IR The IOML forms a 37o angle with the IR The OML forms a 37o angle with the IR

The point of union between the mandibular body and ramus is called the:

Choose two of the following statements that are true regarding the radiograph shown below. 415 U3 test Q89.png

How many degrees and in which direction should the CR be directed for the PA axial projection of the mandible?

Which positioning line starts off parallel to the IR for the tangential projection of the zygomatic arches prior to rotation and tilt?

Where should the petrous ridges be seen in the PA axial (exaggerated Caldwell) projection of the orbits?

For the parietoacanthial projection, describe where the petrous portions most likely will appear in the image if the OML creates a 55o angle with the IR.

Which letter corresponds with the ethmoid bone in the image below? 415 U3 test Q22.png

Which of the following patient positions created the radiograph shown below? 415 U3 test Q90.png

Which of the following radiographs demonstrates the lateral projection of the orbits?