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






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






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






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






5. 68 Degrees F






6. Cortical bone - radiopaque band above maxillary incisors






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






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






9. Encases/supports teeth






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






11. 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






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






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






14. U-shaped portion extending from ramus to ramus






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






16. Gray






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






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






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






20. Cortical bone; J or U shaped radiopacity






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






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






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






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






25. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






26. Anterior ramus of mandible; attachment for muscle of mastication; superimposed around maxillary tuberosity.






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






28. Do not occur in dentistry






29. Sievart






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






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






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






33. Restricts size and shape of beam to lower patient exposure - Round: cone shaped beam-2.75 inches in diameter - Rectangular: Rectangular beam slightly larger than size 2 film- lowers patient exposure






34. 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)






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






36. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






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






38. Marked prominence that appears radiopaque.






39. Mature bone - muscle - nerve






40. Bony prominence posterior to maxillary third molar; radiopaque






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






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






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






44. Coulombs per kilogram






45. Hollow space - cavity that appears radiolucent






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






47. Pear shaped compartment - appears above maxillary incisors. Appears as a large radiolucent area above the maxilla.






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






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






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