RADIOLOGIC 302 RAD 302 Facial Bones Quiz And Answers Graded

Chapter 21: Facial Bones MULTIPLE CHOICE 1. For a lateral projection of the facial bones, the IR is centered to the: a. glabella b. nasion c. acanthion d. zygomatic bone ANS: D PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: 1 2. Which of the following is placed parallel to the transverse axis of the IR for a lateral projection of the facial bones? a. mentomeatal line b. acanthiomeatal line c. orbitomeatal line d. infraorbitomeatal line ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 3. For a lateral projection of the facial bones, the central ray will enter: a. at the TMJ b. at the EAM c. at the outer canthus d. halfway between the outer canthus and the EAM ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 2 4. The lateral projection of the facial bones clearly demonstrates the: a. maxillae b. petrous ridge c. petromastoid portion d. all facial bones in their entirety ANS: D PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 5. The parietoacanthial projection of the facial bones is commonly called the: a. Towne method b. Waters method c. Caldwell method d. Rhese method ANS: B PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 6. For the Waters method, the orbitomeatal line is placed at what angle to the IR? a. 30 degrees b. 35 degrees c. 37 degrees d. 55 degrees ANS: C PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: 1 7. Which of the following is true regarding positioning for the Waters method? 1.) the orbitomeatal line forms a 37-degree angle with the plane of the IR 2.) the mentomeatal line is perpendicular to the IR plane 3.) the coronal plane is perpendicular to the IR plane a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2, and 3 ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 8. Which of the following is centered to the IR for a parietoacanthial projection of the facial bones? a. nasion b. acanthion c. glabella d. mental point ANS: B PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 9. The figure below demonstrates the: a. Haas method b. Stenvers method c. Waters method d. reverse Waters method ANS: C PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 10. Which facial bones are clearly demonstrated on the parietoacanthial projection (Waters method)? 1.) orbits 2.) maxillae 3.) zygomatic arches a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2, and 3 ANS: D PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 11. The parietoacanthial projection (Waters 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: a. 30 degrees b. 37 degrees c. 55 degrees d. 60 degrees ANS: C PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 2 12. Which of the following is placed perpendicular to the IR for the acanthoparietal projection (reverse Waters method) of the facial bones? a. mentomeatal line b. infraorbitomeatal line c. acanthiomeatal line d. glabellomeatal line ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 13. The central-ray angulation for the reverse Waters method is: a. 0 degrees b. 15 degrees c. 30 degrees to the acanthiomeatal line d. 37 degrees to the acanthiomeatal line ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 14. 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: a. mentomeatal line b. orbitomeatal line c. infraorbitomeatal line d. acanthiomeatal line ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 2 15. Which of the following is true regarding the lateral projection of the nasal bones? 1.) occlusal IR may be used 2.) both sides are done for comparison 3.) the interpupillary line is perpendicular to the tabletop a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2, and 3 ANS: D PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: 1 16. For the submentovertical projection of the zygomatic arches, the central ray is directed perpendicular to the: a. mentomeatal line b. orbitomeatal line c. infraorbitomeatal line d. acanthiomeatal line ANS: C PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 17. Both zygomatic arches can be demonstrated on one projection for which of the following projections? 1.) tangentia 2.) SMV 3.) AP axial a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2, and 3 ANS: C PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 18. For the tangential projection of the zygomatic arch, the head is positioned so that the midsagittal plane is: a. 10 degrees toward the side being examined b. 15 degrees toward the side being examined c. 10 degrees away from the side being examined d. 15 degrees away from the side being examined ANS: B PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 2 19. For the tangential projection of the zygomatic arch, the top of the head is tilted how many degrees? a. 10 degrees away from the side examined b. 15 degrees away from the side examined c. 10 degrees toward the side examined d. 15 degrees toward the side examined ANS: B PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 20. For the tangential projection of the zygomatic arch, the central ray is directed perpendicular to the: a. infraorbitomeatal line b. mentomeatal line c. orbitomeatal line d. acanthiomeatal line ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 21. Which line is placed perpendicular to the plane of the IR for the AP axial projection of the zygomatic arches? a. orbitomeatal line b. mentomeatal line c. acanthiomeatal line d. infraorbitomeatal line ANS: A PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: None 22. Where is the IR centered for the AP axial projection of the zygomatic arches? a. EAM b. acanthion c. mental point d. mandibular angles ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 23. What is the central-ray angulation for the AP axial projection of the zygomatic arches? a. 10 degrees caudad b. 15 degrees caudad c. 30 degrees caudad d. 35 degrees caudad ANS: C PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: 1 24. Which of the following is centered to the IR for the PA projection of the mandibular rami? a. nasion b. glabella c. mental point d. tip of the nose ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 25. Which of the following projections will clearly demonstrate any medial or lateral displacement of fractures of the mandibular rami? 1.) PA 2.) PA axial 3.) axiolateral oblique a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2, and 3 ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 26. What is the central-ray angulation for the PA axial projection of the mandibular rami? a. 15 degrees cephalad b. 20 degrees cephalad c. 25 degrees cephalad d. 20 to 25 degrees cephalad ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 27. Several methods area available to perform the axiolateral oblique projection of the mandible to demonstrate the symphysis, body, or ramus. What is the central-ray angulation for all of these projections? a. 15 degrees cephalad b. 15 degrees caudad c. 25 degrees cephalad d. 25 degrees caudad ANS: C PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 2 28. Which of the following lines is placed perpendicular to the plane of the IR for the AP axial projection of the TMJ articulation? a. orbitomeatal line b. mentomeatal line c. acanthiomeatal line d. infraorbitomeatal line ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 29. What is the central-ray angulation for the AP axial projection of the TMJ? a. 25 degrees caudad b. 25 degrees cephalad c. 35 degrees caudad d. 35 degrees cephalad ANS: C PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: 1 30. The midsagittal plane of the head is rotated how many degrees for the axiolateral oblique projection of the TMJ? a. 0 degrees toward the IR b. 15 degrees toward the IR c. 0 degrees away from the IR d. 15 degrees away from the IR ANS: B PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 2 31. Which of the following lines is placed parallel with the transverse axis of the IR for the axiolateral oblique projection of the TMJ? a. orbitomeatal line b. mentomeatal line c. glabellomeatal line d. acanthiomeatal line ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 32. What is the central-ray angulation for the axiolateral oblique projection of the TMJ? a. 15 degrees b. 20 degrees c. 25 degrees d. 30 degrees ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: None 33. Which part of the patient's face is touching the upright bucky, or table, for a parietoacanthial projection (Waters method)? a. forehead b. nose c. chin d. nose and chin ANS: C PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 34. Where is the central ray centered for a lateral projection of the facial bones? a. inch distal to the nasion b. inch distal to the nasion c. 1 inch distal to the nasion d. variable, depending on the size of nose ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 35. Which of the following lines is placed as nearly parallel to the IR as possible for the SMV projection of the zygomatic arches? a. AML b. IOML c. OML d. MML ANS: B PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 36. At which level will the central ray be placed for the SMV projection of the zygomatic arches? a. level of the EAM b. level of the TMJ c. level of the outer canthi d. at a level 1 inch posterior to the outer canthi ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 37. At which level will the central ray be placed for the tangential projection of the zygomatic arch? a. level of the EAM b. level of the TMJ c. level of the outer canthi d. at a level 1 inch posterior to the outer canthi ANS: D PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 38. Which reference line is perpendicular to the IR for the PA and PA axial mandibular rami? a. OML b. AML c. MML d. IOML ANS: A PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 39. The axiolateral oblique projection is used to demonstrate the mandible. How is the head positioned to demonstrate the ramus of the mandible? a. true lateral b. 30 degrees toward the IR c. 45 degrees toward the IR d. 30 to 45 degrees toward the IR ANS: A PTS: 1 DIF: Level: Medium OBJ: Category: Positioning TOP: Exam: 4 40. The axiolateral oblique projection is used to demonstrate the mandible. How is the head positioned to demonstrate the body of the mandible? a. true lateral b. 30 degrees toward the IR c. 45 degrees toward the IR d. 30 to 45 degrees toward the IR ANS: B PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 41. The axiolateral oblique projection is used to demonstrate the mandible. How is the head positioned to demonstrate the symphysis of the mandible? a. true lateral b. 30 degrees toward the IR c. 45 degrees toward the IR d. 30 to 45 degrees toward the IR ANS: C PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4 42. Which of the following projections best demonstrates the condyle and neck of the mandible? a. AP axial b. axiolateral c. axiolateral oblique d. verticosubmental ANS: C PTS: 1 DIF: Level: Hard OBJ: Category: Positioning TOP: Exam: 4