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






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






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






4. Cortical bone; J or U shaped radiopacity






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






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






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






8. Surrounds root - cortical bone - radiopaque






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






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






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






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






13. Linear prominence that appears radiopaque.






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






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






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






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






18. X-radiation created when the primary beam interacts with a matter






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






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






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






22. 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)






23. Continues from ramus; radiopaque band






24. Marked prominence that appears radiopaque.






25. Encases/supports teeth






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






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






28. Rounded prominence that appears radiopaque






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






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






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






32. 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






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






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






35. Coulombs per kilogram






36. Do not occur in dentistry






37. 68 Degrees F






38. 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)






39. Mature bone - muscle - nerve






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






41. 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)






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






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






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






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






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






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






48. Effects seen years - decades - or generations later






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






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







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