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






2. Marked prominence that appears radiopaque.






3. Bump or nodule that appears radiopaque






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






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






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






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






8. Hollow space - cavity that appears radiolucent






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






10. Bony wall that divides 2 spaces - radiopaque






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






12. Effects seen years - decades - or generations later






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






14. 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.






15. Sharp - thornlike projection that appears radiopaque.






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






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






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






19. Dental x-ray machines operating 70 kVp or below: minimum 1.5 mm aluminum filtration - Dental x-ray machines operating above 70 kVp: minimum of 2.5 mm. of aluminum filtration.






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






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






22. A direct function of the dose. No dose threshold; effects do not depend on the magnitude of the absorbed dose (Examples: cancer and genetic mutations)






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






24. Cortical bone - radiopaque band above maxillary incisors






25. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






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






27. Sievart






28. Bony prominence posterior to maxillary third molar; radiopaque






29. Surrounds root - cortical bone - radiopaque






30. Gray






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






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






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






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






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






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






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






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






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






40. Rounded prominence that appears radiopaque






41. Posterior to mandibular third molar






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






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






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






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






46. 68 Degrees F






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






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






49. 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)






50. Encases/supports teeth