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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. Hollow space - cavity that appears radiolucent






2. U-shaped portion extending from ramus to ramus






3. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent






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






5. Between canine and lateral incisor - depression is not always visible - radiolucent






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






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






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






9. Effects seen years - decades - or generations later






10. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)






11. 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.






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






13. Linear prominence that appears radiopaque.






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






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






16. Surrounds root - cortical bone - radiopaque






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






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






19. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






20. Continues from ramus; radiopaque band






21. Coulombs per kilogram






22. 68 Degrees F






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






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






25. 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






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






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






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






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






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






31. 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)






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






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






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






35. Sievart






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






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






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






39. 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)






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






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






42. 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






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






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






45. Rounded prominence that appears radiopaque






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






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






48. Bony wall that divides 2 spaces - radiopaque






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






50. Posterior to mandibular third molar