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Radiology 3

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Marked prominence that appears radiopaque.






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






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






4. Scooped out of depressed area of bone that appears radiolucent






5. Continues from ramus; radiopaque band






6. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band






7. 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)






8. Coulombs per kilogram






9. 68 Degrees F






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






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






12. Cortical bone - radiopaque band above maxillary incisors






13. Posterior to mandibular third molar






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






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






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






17. Sievart






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






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






20. 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.






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






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






23. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line






24. U-shaped portion extending from ramus to ramus






25. Rounded prominence that appears radiopaque






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






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






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






29. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






31. Bump or nodule that appears radiopaque






32. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






33. Effects seen years - decades - or generations later






34. Hollow space - cavity that appears radiolucent






35. 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)






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






37. Surrounds root - cortical bone - radiopaque






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






39. Sharp - thornlike projection that appears radiopaque.






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






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






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






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






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






45. Bony wall that divides 2 spaces - radiopaque






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






47. 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






48. Mature bone - muscle - nerve






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






50. 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







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