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Test your basic knowledge |
Radiology 3
Start Test
Study First
Subjects
:
health-sciences
,
radiology
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. Primary beam passes through glass window - insulating oil - tubehead seal. 0.5 to 1.0 mm of aluminum
Coronoid Process
Characteristic Radiation
Inherent filtration
Coherent Scatter
2. Internal ridge of mandible muscle attachment - continuous with internal oblique ridge; radiopaque line
Radioresistant cells
Tuberosity
The optimum temperature for manual processing?
Mylohyoid Ridge
3. Cell damage occurs through formation of 'free radicals'. Free radicals are formed when an x-ray photon ionizes water.
Conical PID
Free Radical Formation
Step-Down Transformer
Stochastic effects
4. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area
The conditions required for the darkroom
Mental Foramen
Radioresistant cells
Zygoma
5. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness
Spine
Amperage
Superior Foramina of incisive canal
Periodontal Ligament Space
6. U-shaped portion extending from ramus to ramus
Body of Mandible
Genial Tubercles
Indirect injury
Ramus
7. Depression of bone; submandibular salivary gland found here; radiolucent; below mylohyoid ridge
Submandibular Fossa
Foramen
Total (inherent + added) filtration
Cancellous
8. A line of union between adjoining bones - found only in skull; appears as radiolucent line
Mental Foramen
Cancellous
Dose Rate
Suture
9. Small lymphocyte - bone marrow - reproductive cells - immature bone
Incisive (Nasopalatine) Foramen
Radiosensitive cells
Zygoma
Anterior Nasal Spine
10. Bony wall that divides 2 spaces - radiopaque
Zygomatic process of maxilla
Nutrient Canals
Septum
Characteristic Radiation
11. Do not occur in dentistry
Maxillary sinus
Body of Mandible
Genetic cells
Short-term effects
12. 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)
Compton Scatter
Step-Down Transformer
Voltage
Collimation
13. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent
Inverted Y
Lingual Foramen
Cortical Bone
Lateral Fossa
14. Mature bone - muscle - nerve
Genial Tubercles
Zygomatic process of maxilla
Radioresistant cells
Free Radical Formation
15. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band
Free Radical Formation
Contrast
Inverted Y
External Oblique Ridge
16. Marked prominence that appears radiopaque.
The conditions required for the darkroom
Process
Ridge
Free Radical Formation
17. Bump of bone - muscle attachment; lingual aspect of mandible - 'ring shaped' radiopacitiy below mandibular incisors.
Coronoid Process
Fixer Solution
Genial Tubercles
Septum
18. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve
Mandibular Canal
Rem (Roentgen equivalent (in) man)
Collimation
Body of Mandible
19. Located at the midline of anterior portion of hard palate behind maxillary central incisors; round radiolucency between roots of centrals
Superior Foramina of incisive canal
Milliamperage adjustment
Incisive (Nasopalatine) Foramen
Nutrient Canals
20. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line
Zygoma
Nutrient Canals
Rem (Roentgen equivalent (in) man)
Median palatine suture
21. Gray
Amperage
Fixer Solution
Rad (Radiation absorbed dose)
Kilovoltage peak adjustment
22. Produced when an electron hits the nucleus of a tungsten atom or passes very close to the nucleus of a tungsten atom.
The conditions required for the darkroom
Density
Maxillary Tuberosity
General Radiation
23. Coronal part of alveolar bone - between teeth - cortical bone - radiopaque
Zygoma
Added filtration
Alveolar Crest
Rectangular and round PID
24. Encases/supports teeth
Alveolar Process
Process
Incisive (Nasopalatine) Foramen
Maxillary sinus
25. Linear prominence that appears radiopaque.
Canal
Ridge
Fixer Solution
Rad (Radiation absorbed dose)
26. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines
Contrast
Nutrient Canals
Superior Foramina of incisive canal
Suture
27. The penetrating x-ray beam that is produced at the target of the anode
Stochastic effects
Nutrient Canals
Milliamperage adjustment
Primary Radiation
28. Cortical bone - radiopaque band above maxillary incisors
Density
Nutrient Canals
Fixer Solution
Floor of Nasal Cavity
29. X-radiation created when the primary beam interacts with a matter
Secondary Radiation
Long-term effects
Total (inherent + added) filtration
Nasal Cavity/Fossa
30. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.
Cancellous
Nonthreshold dose-response curve
Collimation
Inferior Nasal Conchae
31. Occurs frequently due to the high concentration of water in cells.
Maxillary Tuberosity
Nutrient Canals
Indirect injury
Contrast
32. Posterior to mandibular third molar
Added filtration
Genetic cells
Density
Ramus
33. 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)
Dose Rate
Amperage
Floor of Nasal Cavity
Submandibular Fossa
34. 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.
Milliamperage adjustment
Zygoma
Nonthreshold dose-response curve
Total (inherent + added) filtration
35. Surrounds root - cortical bone - radiopaque
Periodontal Ligament Space
Compton Scatter
Lamina Dura
Amperage
36. Produced when a high-speed electron dislodges an inner-shell electron from a tungsten atom and causes ionization of that atom. Occurs only at 70 kVp and above.
Characteristic Radiation
Step-Up Transformer
Sinus
Zygoma
37. Bony prominence posterior to maxillary third molar; radiopaque
Maxillary Tuberosity
Inverted Y
Ramus
Collimation
38. Cortical bone; J or U shaped radiopacity
Zygomatic process of maxilla
Cancellous
Rectangular and round PID
Coherent Scatter
39. Thin - curved areas of bone - radiopacities within nasal cavity and septum
Cancellous
Inferior Nasal Conchae
Suture
Kilovoltage peak adjustment
40. 'Cortex'-> dense - outer layer; also called compact bone-appears radiopaque on film
Added filtration
Lamina Dura
Characteristic Radiation
Cortical Bone
41. Can control the current passing from the cathode to the anode.
Inverted Y
Kilovoltage peak adjustment
Nutrient Canals
Genial Tubercles
42. Effects seen years - decades - or generations later
Compton Scatter
Inherent filtration
Long-term effects
Septum
43. Time between exposure to ionizing radiation and the appearance of observable clinical signs.
The conditions required for the darkroom
Free Radical Formation
Cortical Bone
Latent Period
44. More damage can occur in younger or rapidly dividing cells
Cell sensitivity
Primary Radiation
Periodontal Ligament Space
Genial Tubercles
45. Closed - pointed cone-high production of scatter - not used any longer.
Alveolar Process
Kilovoltage peak adjustment
Fossa
Conical PID
46. Reproductive (ova - sperm). Effects are passed on to generations. Genetic damage cannot be repaired
Genetic cells
Step-Down Transformer
Mental Foramen
Characteristic Radiation
47. Darkness or blackness on film. If kVp is increased film will be darker. If decreased - film will be lighter
Median palatine suture
Added filtration
Inherent filtration
Density
48. Occurs very little; most photons pass through cell with little or no damage
Genial Tubercles
Total dose
Direct Injury
Septum
49. Aluminum disks between collimator and tubehead seal. Aluminum disks filter long wavelength - low energy x-rays from x-ray beam. 0.5 mm increments
Added filtration
Amount of tissue irradiated
Anterior Nasal Spine
Ridge
50. Within maxillary sinus; acts as a division - radiopaque lines sometimes not visible
Rad (Radiation absorbed dose)
Septa within maxillary sinus
Cell sensitivity
Nasal Cavity/Fossa