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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. Opening/hole in bone that allows the passage of blood vessels/nerves and appears radiolucent






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






3. Continues from ramus; radiopaque band






4. U-shaped portion extending from ramus to ramus






5. Small lymphocyte - bone marrow - reproductive cells - immature bone






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






7. 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)






8. 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.






9. Restricts size and shape of beam to lower patient exposure - Round: cone shaped beam-2.75 inches in diameter - Rectangular: Rectangular beam slightly larger than size 2 film- lowers patient exposure






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






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






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






13. Cortical bone; J or U shaped radiopacity






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






15. Bony prominence posterior to maxillary third molar; radiopaque






16. Mature bone - muscle - nerve






17. Bump or nodule that appears radiopaque






18. 'Cortex'-> dense - outer layer; also called compact bone-appears radiopaque on film






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






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






21. Sharp - thornlike projection that appears radiopaque.






22. Within maxillary sinus; acts as a division - radiopaque lines sometimes not visible






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






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






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






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






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






28. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






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






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






32. Produced when an electron hits the nucleus of a tungsten atom or passes very close to the nucleus of a tungsten atom.






33. Marked prominence that appears radiopaque.






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






35. Rate which exposure to radiation occurs and absorption occurs (more damage occurs with high dose due to rapid delivery and does not allow for repair)






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






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






38. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






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






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






41. Rounded prominence that appears radiopaque






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






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






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






45. Gray






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






47. 68 Degrees F






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






49. The x-ray photon is deflected from its path during its passage through matter






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