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Facial Nasal Zygomatic Arches Post
| For a lateral projection of the facial bones, the IR is centered to the ________. | Zygomatic bone |
| Which of the following is placed parallel to the transverse axis of the IR for a lateral projection of the facial bones? | Infraorbitomeatal line |
| For a lateral projection of the facial bones, the central ray will enter________. | Halfway between the outer canthus and the EAM |
| The lateral projection of the facial bones clearly demonstrates the ________. | All facial bones in their entirety |
| The parietoacanthial projection of the facial bones is commonly called the ________. | Waters method |
| For the Waters method, the Orbitomeatal line is placed at what angle to the IR? | 37 degrees |
| Which of the following is true regarding positioning for the Waters method? | The Orbitomeatal line forms a 37-degree angle with the plane of the IR and The mentomeatal line is perpendicular to the IR plane |
| Which o the following is centered to the IR for a parietoacanthial projection of the facial bones? | Acanthion |
| Which facial bones are clearly demonstrated on the parietoacanthial projection (Waters method)? | Orbits, maxillae, Zygomatic arches |
| The parietoacanthial projection (Water’s method) of the facial bones is often modified so that there is less angulation of the facial bones. For this modification , the Orbitomeatal line is adjusted to _______. | 55 degrees |
| Which of the following is placed perpendicular to the IR for the acanthoparietal projection (reverse Waters method) of the facial bones? | Mentomeatal line |
| The central-ray angulation for the reverse Waters method is _______. | 0 degrees |
| Trauma patients may arrive in the radiology department with their head mobilized. A reverse Waters method can always be performed on these patients by adjusting the central ray parallel to the _______. | Mentomeatal line |
| Which of the following is true regarding the lateral projection of the nasal bones? | Occlusal IR may be used, both sides are done for comparison, and the interpupillary line is perpendicular to the table top |
| For the submentovertical projectio of the zygomatic arches, the central ray is directed perpendicualr to the________. | Infraorbitomeatal line |
| Both zygomatic arches can be demonstrated on one projection for which of the following projections? | SMV and AP axial |
| For the tangential projectio of the zygomatic arch, the head is positioned so that the midsagittal plane is ¬_______. | 15 degrees toward the side being examined |
| For the tangential projection of the zygomatic arch, the top of the head is tilted how many degrees? | 15 degrees away from the side examined |
| For the tangential projection of the zygomatic arch, the central ray is directed perpendicular to the_______. | Infraorbitomeatal line |
| Which line is placed perpendicular to the plane of the IR fo rht AP axial projection of the zygomatic arches? | Orbitomeatal line |
| Where is the IR centered for the AP axial projection of the zygomatic arches? | Mandibular angles |
| What is the central-ray angulation for the AP axial projection of the zygomatic arches? | 30 degrees caudad |
| Which part of the patients face is touching the upright bucky, or table, for a parietoacanthial projection (Water’s method)? | Chin |
| Where is the central ray centered for a lateral projection of the Nasal bone? | 1/2 inch distal to the nasion |
| Which of the following lines is placed as nearly parallel to the IR as possible for the SMV projection of the zygomatic arches? | Ioml |
| At which level will the central ray be placed for the SMV projection of the zygomatic arches? | At a level 1 inch posterior to the outer canthi |
| At which level will the central ray be placed for the tangential projection of the zygomatic arch? | At a level 1 inch posterior to the outer canthi |
What is the central ray CR for a Parietoacanthial projection?
Facial Nasal Zygomatic Arches Post.
What is the central ray direction for the Parietoacanthial projection waters method of the facial bones?
Positioning / Merrills Chapter 20.
Which of the following is centered to the IR for the PA axial projection of the mandibular Rami?
Positioning TMG SINUS MANDIBLE.
Where is the CR centered for a lateral projection of the facial bones quizlet?
CR is centered to the zygoma for facial bones and 2 inches above the EAM for the cranium.