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






2. Bony wall that divides 2 spaces - radiopaque






3. 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.






4. Sievart






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






6. U-shaped portion extending from ramus to ramus






7. Linear prominence that appears radiopaque.






8. 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






9. Continues from ramus; radiopaque band






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






11. Sharp - thornlike projection that appears radiopaque.






12. 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)






13. Hole in bone below mandibular premolars - blood supply to lower lip exits here; radiolucent; often misdiagnosed for periapical pathology






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






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






16. Surrounds root - cortical bone - radiopaque






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






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






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






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






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






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






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






24. 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)






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






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






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






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






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






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






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






32. Marked prominence that appears radiopaque.






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






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






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






36. Bump or nodule that appears radiopaque






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






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






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






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






41. Cortical bone; J or U shaped radiopacity






42. 68 Degrees F






43. 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.






44. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






45. Encases/supports teeth






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






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






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






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






50. Posterior to mandibular third molar