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






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






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






4. Linear prominence that appears radiopaque.






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






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






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






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






9. Cortical bone; J or U shaped radiopacity






10. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






11. Continues from ramus; radiopaque band






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






13. 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.






14. Sievart






15. More damage can occur in younger or rapidly dividing cells






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






17. U-shaped portion extending from ramus to ramus






18. Gray






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






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






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






22. Posterior to mandibular third molar






23. Encases/supports teeth






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






25. Effects seen years - decades - or generations later






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






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






28. Coulombs per kilogram






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






30. Cell damage occurs through formation of 'free radicals'. Free radicals are formed when an x-ray photon ionizes water.






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






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






33. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






34. Rounded prominence that appears radiopaque






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






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






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






38. Mature bone - muscle - nerve






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






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






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






42. 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)






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






44. 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






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






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






47. Bony prominence posterior to maxillary third molar; radiopaque






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






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






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