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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. Coulombs per kilogram






2. Mature bone - muscle - nerve






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






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






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






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






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






8. Continues from ramus; radiopaque band






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






10. 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






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






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






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






14. Do not occur in dentistry






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






16. Bony wall that divides 2 spaces - radiopaque






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






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






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






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






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






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






23. Surrounds root - cortical bone - radiopaque






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






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






26. 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)






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






28. Linear prominence that appears radiopaque.






29. 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)






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






31. Marked prominence that appears radiopaque.






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






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






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






35. Effects seen years - decades - or generations later






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






37. Sharp - thornlike projection that appears radiopaque.






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






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






40. Cortical bone - radiopaque band above maxillary incisors






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






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






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






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






45. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






47. 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.






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






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






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