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






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






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






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






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






6. 68 Degrees F






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






8. Gray






9. Bony wall that divides 2 spaces - radiopaque






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






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






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






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






14. Surrounds root - cortical bone - radiopaque






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






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






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






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






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






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






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






22. Mature bone - muscle - nerve






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






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






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






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






27. 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.






28. 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






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






30. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






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






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






34. Encases/supports teeth






35. 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






36. Linear prominence that appears radiopaque.






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






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






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






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






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






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






43. Continues from ramus; radiopaque band






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






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






46. Effects seen years - decades - or generations later






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






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






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






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