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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. Marked prominence that appears radiopaque.






2. Somatic effects that have a threshold; effects increase in severity with increasing absorbed dose. (Examples: Erythema - loss of hair - cataracts - and decreased fertility)






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






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






5. The measurement of electrical force that causes electrons to move from a negative pole to a positive one. Measured in volts (V) or kilovolts (kV)






6. Rounded prominence that appears radiopaque






7. Cortical bone; J or U shaped radiopacity






8. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band






9. Reproductive (ova - sperm). Effects are passed on to generations. Genetic damage cannot be repaired






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






11. Linear prominence that appears radiopaque.






12. Posterior to mandibular third molar






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






14. Surrounds root - cortical bone - radiopaque






15. Coronal part of alveolar bone - between teeth - cortical bone - radiopaque






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






17. Bony wall that divides 2 spaces - radiopaque






18. Mature bone - muscle - nerve






19. Occurs frequently due to the high concentration of water in cells.






20. All cells except reproductive; effects are seen in person irradiated






21. Coulombs per kilogram






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






23. Aluminum disks between collimator and tubehead seal. Aluminum disks filter long wavelength - low energy x-rays from x-ray beam. 0.5 mm increments






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






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






26. Cortical bone - radiopaque band above maxillary incisors






27. 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.






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






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






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






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






32. Effects seen years - decades - or generations later






33. Encases/supports teeth






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






35. Bump or nodule that appears radiopaque






36. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness






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






38. Produced when a high-speed electron dislodges an inner-shell electron from a tungsten atom and causes ionization of that atom. Occurs only at 70 kVp and above.






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






40. An x-ray photon that has its path altered by matter.






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






42. Hole in bone below mandibular premolars - blood supply to lower lip exits here; radiolucent; often misdiagnosed for periapical pathology






43. Gray






44. Area of body exposed total body produced more adverse effects






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






46. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






47. Continues from ramus; radiopaque band






48. Can increase or decrease the number of electrons passing through the cathode filament






49. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)






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