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






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






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






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






5. 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






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






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






8. Coulombs per kilogram






9. 68 Degrees F






10. Do not occur in dentistry






11. Sievart






12. 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)






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






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






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






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






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






18. Continues from ramus; radiopaque band






19. The measurement of the number of electrons moving through a conductor. Measured in amperes (A) or milliamperes (mA)






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






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






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






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






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






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






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






27. Linear prominence that appears radiopaque.






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






29. Mature bone - muscle - nerve






30. Bony wall that divides 2 spaces - radiopaque






31. 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.






32. Cortical bone - radiopaque band above maxillary incisors






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






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






35. Surrounds root - cortical bone - radiopaque






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






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






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






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






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






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






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






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






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






45. 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)






46. Bony prominence posterior to maxillary third molar; radiopaque






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






48. Rounded prominence that appears radiopaque






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






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







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