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






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






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






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






5. Sharp - thornlike projection that appears radiopaque.






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






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






8. 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)






9. 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)






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






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






12. Cortical bone; J or U shaped radiopacity






13. Bony wall that divides 2 spaces - radiopaque






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






15. Located at the midline of anterior portion of hard palate behind maxillary central incisors; round radiolucency between roots of centrals






16. Marked prominence that appears radiopaque.






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






18. Posterior to mandibular third molar






19. Gray






20. Hollow space - cavity that appears radiolucent






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






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






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






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






25. Surrounds root - cortical bone - radiopaque






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






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






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






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






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






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






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






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






34. Coulombs per kilogram






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






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






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






38. Cortical bone - radiopaque band above maxillary incisors






39. 68 Degrees F






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






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






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






43. Effects seen years - decades - or generations later






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






45. Mature bone - muscle - nerve






46. Removes unexposed silver halide crystals and creates white/clear areas on film; black metallic silver remains on film.






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






48. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area






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






50. Linear prominence that appears radiopaque.