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






2. Continues from ramus; radiopaque band






3. Bump or nodule that appears radiopaque






4. 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)






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






6. Mature bone - muscle - nerve






7. 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






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






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






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






11. Somatic effects that have a threshold; effects increase in severity with increasing absorbed dose. (Examples: Erythema - loss of hair - cataracts - and decreased fertility)






12. Sharp - thornlike projection that appears radiopaque.






13. Effects seen years - decades - or generations later






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






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






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






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






18. Hollow space - cavity that appears radiolucent






19. Surrounds root - cortical bone - radiopaque






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






21. Gray






22. Posterior to mandibular third molar






23. Linear prominence that appears radiopaque.






24. Bony prominence posterior to maxillary third molar; radiopaque






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






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






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






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






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






30. Marked prominence that appears radiopaque.






31. Cortical bone; J or U shaped radiopacity






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






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






34. Coulombs per kilogram






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






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






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






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






39. 68 Degrees F






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






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






42. 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.






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






44. 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.






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






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






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






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






49. Do not occur in dentistry






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