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






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






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






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






5. U-shaped portion extending from ramus to ramus






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






7. Linear prominence that appears radiopaque.






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






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






10. Hollow space - cavity that appears radiolucent






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






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






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






14. Do not occur in dentistry






15. Gray






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






17. Continues from ramus; radiopaque band






18. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






19. 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)






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






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






22. Surrounds root - cortical bone - radiopaque






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






24. Mature bone - muscle - nerve






25. Encases/supports teeth






26. Bump or nodule that appears radiopaque






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






28. Marked prominence that appears radiopaque.






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






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






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






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






33. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






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






36. Cortical bone - radiopaque band above maxillary incisors






37. Cortical bone; J or U shaped radiopacity






38. 68 Degrees F






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






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






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






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






44. Sharp - thornlike projection that appears radiopaque.






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






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






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






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






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






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