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






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






3. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.






4. Gray






5. 68 Degrees F






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






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






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






9. Effects seen years - decades - or generations later






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






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






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






13. Cortical bone - radiopaque band above maxillary incisors






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






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






16. Rounded prominence that appears radiopaque






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






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






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






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






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






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






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






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






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






27. Sharp - thornlike projection that appears radiopaque.






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






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






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






31. Bony prominence posterior to maxillary third molar; radiopaque






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






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






34. Cortical bone; J or U shaped radiopacity






35. Encases/supports teeth






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






37. 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






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






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






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






41. Mature bone - muscle - nerve






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






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






44. Coulombs per kilogram






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






46. 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.






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






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






49. 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)






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