Test your basic knowledge |

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. Rounded prominence that appears radiopaque






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






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






4. Effects seen years - decades - or generations later






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






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






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






8. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.






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






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






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






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






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






14. Mature bone - muscle - nerve






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






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






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






18. Encases/supports teeth






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






20. 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)






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






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






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






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






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






26. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






27. Do not occur in dentistry






28. Posterior to mandibular third molar






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






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






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






32. Surrounds root - cortical bone - radiopaque






33. 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)






34. Bony prominence posterior to maxillary third molar; radiopaque






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






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






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






38. Gray






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






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






41. Cortical bone - radiopaque band above maxillary incisors






42. Marked prominence that appears radiopaque.






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






44. Cortical bone; J or U shaped radiopacity






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






46. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






47. Coulombs per kilogram






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






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






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