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






2. Gray






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






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






5. Marked prominence that appears radiopaque.






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






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






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






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






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






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






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






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






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






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






17. 68 Degrees F






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






19. Effects seen years - decades - or generations later






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






21. Posterior to mandibular third molar






22. Linear prominence that appears radiopaque.






23. Mature bone - muscle - nerve






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






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






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






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






29. Cortical bone - radiopaque band above maxillary incisors






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






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






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






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






34. Bump or nodule that appears radiopaque






35. 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)






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






38. Cortical bone; J or U shaped radiopacity






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






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






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






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






43. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






44. Hollow space - cavity that appears radiolucent






45. 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.






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






47. Surrounds root - cortical bone - radiopaque






48. Do not occur in dentistry






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






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