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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. 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)






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






3. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






5. 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)






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






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






8. Marked prominence that appears radiopaque.






9. Rounded prominence that appears radiopaque






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






11. Gray






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






13. 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






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






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






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






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. 68 Degrees F






19. Mature bone - muscle - nerve






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






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






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






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






24. Cortical bone; J or U shaped radiopacity






25. Bump or nodule that appears radiopaque






26. Cortical bone - radiopaque band above maxillary incisors






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






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






29. 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.






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






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






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






33. Encases/supports teeth






34. U-shaped portion extending from ramus to ramus






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






36. Sharp - thornlike projection that appears radiopaque.






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






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






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






40. Effects seen years - decades - or generations later






41. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






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






43. Continues from ramus; radiopaque band






44. Bony wall that divides 2 spaces - radiopaque






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






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






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






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






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






50. 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