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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. Area of body exposed total body produced more adverse effects






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






3. 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






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






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






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






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






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






9. Sievart






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






11. Continues from ramus; radiopaque band






12. 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)






13. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






15. Bony prominence posterior to maxillary third molar; radiopaque






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






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






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






19. Surrounds root - cortical bone - radiopaque






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






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






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






23. Hollow space - cavity that appears radiolucent






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






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






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






27. 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)






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






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






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






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






32. Linear prominence that appears radiopaque.






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






34. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






35. Marked prominence that appears radiopaque.






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






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






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






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






40. Effects seen years - decades - or generations later






41. 68 Degrees F






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






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






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






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






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






47. Coulombs per kilogram






48. 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.






49. Gray






50. Sharp - thornlike projection that appears radiopaque.