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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. Area of body exposed total body produced more adverse effects






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






3. Marked prominence that appears radiopaque.






4. Hollow space - cavity that appears radiolucent






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






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






7. Continues from ramus; radiopaque band






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






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






10. Dental x-ray machines operating 70 kVp or below: minimum 1.5 mm aluminum filtration - Dental x-ray machines operating above 70 kVp: minimum of 2.5 mm. of aluminum filtration.






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






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






13. 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)






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






15. Do not occur in dentistry






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






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






19. Aluminum disks between collimator and tubehead seal. Aluminum disks filter long wavelength - low energy x-rays from x-ray beam. 0.5 mm increments






20. Effects seen years - decades - or generations later






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






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






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






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






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






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






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






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






29. Sharp - thornlike projection that appears radiopaque.






30. Gray






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






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






33. Bony prominence posterior to maxillary third molar; radiopaque






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






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






36. Rounded prominence that appears radiopaque






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






38. 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)






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






40. Mature bone - muscle - nerve






41. Encases/supports teeth






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






43. Bump or nodule that appears radiopaque






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






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






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






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






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






49. 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






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