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






3. Linear prominence that appears radiopaque.






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






5. Encases/supports teeth






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






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






8. 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)






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






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






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






12. Bump or nodule that appears radiopaque






13. 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






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






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






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






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






18. 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.






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






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






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






22. Rounded prominence that appears radiopaque






23. Bony prominence posterior to maxillary third molar; radiopaque






24. Bony wall that divides 2 spaces - radiopaque






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






26. Sievart






27. U-shaped portion extending from ramus to ramus






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






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






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






31. 68 Degrees F






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






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






34. Coronal part of alveolar bone - between teeth - cortical bone - radiopaque






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






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






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






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






39. Sharp - thornlike projection that appears radiopaque.






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






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






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






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






44. 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






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






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






47. Coulombs per kilogram






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






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






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