| A | B |
|---|
| What baseline is parallel with the bottom of the IR on a lateral facial bone? | Infraorbitomeatal |
| Where will the condyle be on a closed-mouth exam of the TMJ? | In the mandibular fossa |
| If you use the OML on a Towne method, how should the CR be angled? | 30 degrees caudad |
| What are the smallest bones in the skull? | Lacrimal |
| What is the largest immovable bone of the face? | Maxillary |
| Where is the infraorbital foramen located? | On the maxillary bone |
| What facial bones are L-shaped? | Palantine |
| Where is the CR for a lateral orbit? | Perpendicular to outer canthus |
| Where is the CR for an AP axial (Towne) of the TMJs? | 35 degrees caudad to enter 3 inches above the nasion |
| What projection of the facial bones best visualizes a blow-out fracture of the orbits? | Parietoacanthial (modified Waters) |
| What exam requires the OML to be 50 degrees? | Orbits, parietoacanthial (modified Waters) |
| What exam will show superimposed zygomatic bones? | Lateral |
| Where does the CR exit on a PA mandibular body? | The lips |
| How is the CR directed on a PA axial mandibular rami? | 20 to 25 degrees cephalic |
| How is the CR angled on an axiolateral mandible? | 25 degrees cephalic |
| Where is the CR directed on a modified Waters of the orbits? | Perpendicular to midorbits |
| What projection best demonstrates anterior versus posterior displacement of a nasal bone fracture? | Lateral |
| For a unilateral zygomatic arch, how is the MSP adjusted? | 15 degrees toward the side being examined. |
| Name all the bones that articulate with the zygomatic bones. | Frontal, temporal (zygomatic process), maxilla and sphenoid |
| What is the name of the vertical portion of the mandible | Ramus |
| In what projection will the petrous ridges be projected immediately below the maxillary sinuses? | Parietoacanthial (Water) |
| In what projection will the petrous ridges lie in the lower third of the orbit? | PA axial (Caldwell) |
| On the axiolateral oblique TMJ the MSP is rotated ___ degrees toward the IR and the CR is directed ____ degrees caudad. | 15, 15 |
| Where will the condyle be in an open-mouth axiolateral TMJ? | Inferior to the articular tubercle |
| When performing the PA and PA axial mandibular body, how is the head positioned? | Rest the face on the nose and chin |
| When performing the PA and PA axial mandibular rami, how is the head positioned? | Rest the face on forehead and nose |
| What baselines are used when performing an SMV projection? | MSP and IOML |
| For the Parietoacanthial Modified Waters for facial bones, how is the OML adjusted? | 55 degrees from IR |
