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






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






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






4. Cortical bone - radiopaque band above maxillary incisors






5. Gray






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






7. Hollow space - cavity that appears radiolucent






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






9. Closed - pointed cone-high production of scatter - not used any longer.






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






11. Bony prominence posterior to maxillary third molar; radiopaque






12. Coulombs per kilogram






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






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






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






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






17. Rounded prominence that appears radiopaque






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






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






20. Cortical bone; J or U shaped radiopacity






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






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






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






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






25. Marked prominence that appears radiopaque.






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






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






28. Posterior to mandibular third molar






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






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






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






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






33. Encases/supports teeth






34. 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)






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






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






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






38. Surrounds root - cortical bone - radiopaque






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






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






41. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






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






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






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






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






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






47. 'hooklike' - posterior to maxillary tuberosity; extension of medial pterygoid plate of sphenoid bone; 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. Mature bone - muscle - nerve






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







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