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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. Continues from ramus; radiopaque band






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






3. Mature bone - muscle - nerve






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






5. Posterior to mandibular third molar






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






7. Bony prominence posterior to maxillary third molar; radiopaque






8. Sievart






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






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






11. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






12. U-shaped portion extending from ramus to ramus






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






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






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






16. Gray






17. Surrounds root - cortical bone - radiopaque






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






19. Cortical bone; J or U shaped radiopacity






20. 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






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






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






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






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






25. Do not occur in dentistry






26. 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






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






28. Rounded prominence that appears radiopaque






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






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






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






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






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






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






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






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






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






38. 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)






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






40. Sharp - thornlike projection that appears radiopaque.






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






42. Linear prominence that appears radiopaque.






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






44. Encases/supports teeth






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






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






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






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






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






50. Effects seen years - decades - or generations later