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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. More damage can occur in younger or rapidly dividing cells






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






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






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






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






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






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






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






9. Bony wall that divides 2 spaces - radiopaque






10. Rounded prominence that appears radiopaque






11. Effects seen years - decades - or generations later






12. 68 Degrees F






13. 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






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






15. 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.






16. Sievart






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






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






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






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






21. 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)






22. Encases/supports teeth






23. U-shaped portion extending from ramus to ramus






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






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






26. 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)






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






28. Gray






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






30. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






31. Linear prominence that appears radiopaque.






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






33. Cortical bone; J or U shaped radiopacity






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






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






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






37. Hollow space - cavity that appears radiolucent






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






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






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






41. Do not occur in dentistry






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






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






44. Continues from ramus; radiopaque band






45. Sharp - thornlike projection that appears radiopaque.






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






47. Bump or nodule that appears radiopaque






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






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






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