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Radiology 3

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Marked prominence that appears radiopaque.






2. Bony prominence posterior to maxillary third molar; radiopaque






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






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






5. Continues from ramus; radiopaque band






6. Bony wall that divides 2 spaces - radiopaque






7. Effects seen years - decades - or generations later






8. Time between exposure to ionizing radiation and the appearance of observable clinical signs.






9. Rounded prominence that appears radiopaque






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






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






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






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






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






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






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






17. Mature bone - muscle - nerve






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






19. Posterior to mandibular third molar






20. Encases/supports teeth






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






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






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






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






25. Do not occur in dentistry






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






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






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






29. 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






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






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






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






33. Sharp - thornlike projection that appears radiopaque.






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






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






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






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






38. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






39. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






40. Surrounds root - cortical bone - radiopaque






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






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






43. Occurs frequently due to the high concentration of water in cells.






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






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






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






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






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






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






50. U-shaped portion extending from ramus to ramus







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