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Radiology 3

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Do not occur in dentistry






2. Rounded prominence that appears radiopaque






3. Bump of bone - muscle attachment; lingual aspect of mandible - 'ring shaped' radiopacitiy below mandibular incisors.






4. A line of union between adjoining bones - found only in skull; appears as radiolucent line






5. Used to increase incoming voltage to 65 -000 to 100 -000 volts used by the high-voltage circuit.






6. Located above maxillary premolar/molar teeth - border is made up of cortical bone; sinus cavity is radiolucent compartment






7. 'hooklike' - posterior to maxillary tuberosity; extension of medial pterygoid plate of sphenoid bone; radiopaque






8. Pear shaped compartment - appears above maxillary incisors. Appears as a large radiolucent area above the maxilla.






9. Sharper of dark and light areas and how they are separated on film. Low kVp results in high contrast (many white and black areas - very little gray). Useful when diagnosing decay. High kVp results in low contrast (many shades of grade) Useful for per






10. 'Cheekbone'; cortical bone; radiopaque band extending from zygomatic process.






11. Depression of bone; submandibular salivary gland found here; radiolucent; below mylohyoid ridge






12. Two small openings (radiolucent) found on floor of nasal cavity->common exit is incisive foramen






13. Used to decrease voltage from the incoming 110- or 220-line voltage to the 3 to 5 volts used by the filament circuit.






14. Hollow space - cavity that appears radiolucent






15. X-radiation created when the primary beam interacts with a matter






16. Posterior to mandibular third molar






17. Tube that passes through bone - contains nerve canals/blood vessels/and appears radiolucent






18. The penetrating x-ray beam that is produced at the target of the anode






19. Between canine and lateral incisor - depression is not always visible - radiolucent






20. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.






21. Can control the current passing from the cathode to the anode.






22. Linear prominence that appears radiopaque.






23. Thin - curved areas of bone - radiopacities within nasal cavity and septum






24. A form of secondary radiation - the result of x-rays that has been deflected from its path by an interaction with matter.






25. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent






26. Primary beam passes through glass window - insulating oil - tubehead seal. 0.5 to 1.0 mm of aluminum






27. Closed - pointed cone-high production of scatter - not used any longer.






28. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines






29. Bony wall that divides 2 spaces - radiopaque






30. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line






31. Removes unexposed silver halide crystals and creates white/clear areas on film; black metallic silver remains on film.






32. 68 Degrees F






33. Encases/supports teeth






34. Dental x-ray machines operating 70 kVp or below: minimum 1.5 mm aluminum filtration - Dental x-ray machines operating above 70 kVp: minimum of 2.5 mm. of aluminum filtration.






35. V-shaped radiopacity at intersection of floor of nasal cavity and septum






36. Coulombs per kilogram






37. Reduces exposed silver halide crystals into black metallic silver a makes dark/black areas on film; unexposed silver halide crystals are unaffected by developer






38. Intersection of maxillary sinus and nasal cavity - radiopaque - cortical bone; above maxillary canine.






39. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve






40. Located at the midline of anterior portion of hard palate behind maxillary central incisors; round radiolucency between roots of centrals






41. Cortical bone; J or U shaped radiopacity






42. Time between exposure to ionizing radiation and the appearance of observable clinical signs.






43. Sharp - thornlike projection that appears radiopaque.






44. Internal ridge of mandible muscle attachment - continuous with internal oblique ridge; radiopaque line






45. 'Arranged like a lattice'->soft - spongy bone located between 2 layers of cortical bone; spaces are trabeculae that are filled with bone marrow.






46. Scooped out of depressed area of bone that appears radiolucent






47. Occurs very little; most photons pass through cell with little or no damage






48. Effects seen years - decades - or generations later






49. Darkness or blackness on film. If kVp is increased film will be darker. If decreased - film will be lighter






50. Tubes within maxillary sinus that carry nerves - blood supply - radiolucent band with boundary of two radiopaque cortical bony lines