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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. Posterior to mandibular third molar
Zygoma
Ramus
Tuberosity
Step-Up Transformer
2. Coulombs per kilogram
Alveolar Crest
The conditions required for the darkroom
Roentgen
Mental Foramen
3. Rounded prominence that appears radiopaque
Spine
Amount of tissue irradiated
Tuberosity
Nasal Cavity/Fossa
4. U-shaped portion extending from ramus to ramus
Free Radical Formation
Body of Mandible
Zygomatic process of maxilla
Septa within maxillary sinus
5. Small lymphocyte - bone marrow - reproductive cells - immature bone
Genial Tubercles
Rem (Roentgen equivalent (in) man)
Radiosensitive cells
Total dose
6. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.
Long-term effects
Kilovoltage peak adjustment
Rectangular and round PID
Foramen
7. Linear prominence that appears radiopaque.
Primary Radiation
Kilovoltage peak adjustment
Hamulus
Ridge
8. Continues from ramus; radiopaque band
Mylohyoid Ridge
Internal Oblique Ridge
Latent Period
Foramen
9. Primary beam passes through glass window - insulating oil - tubehead seal. 0.5 to 1.0 mm of aluminum
Characteristic Radiation
Inherent filtration
Amperage
Maxillary sinus
10. Scooped out of depressed area of bone that appears radiolucent
Ramus
Fossa
Coherent Scatter
Rectangular and round PID
11. Located at the midline of anterior portion of hard palate behind maxillary central incisors; round radiolucency between roots of centrals
Tuberosity
Incisive (Nasopalatine) Foramen
Body of Mandible
Conical PID
12. A line of union between adjoining bones - found only in skull; appears as radiolucent line
Density
Suture
Long-term effects
Nonstochastic (deterministic) effects
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
Contrast
Milliamperage adjustment
Ridge
Tuberosity
14. Encases/supports teeth
Suture
Alveolar Process
Zygomatic process of maxilla
Fossa
15. Bony wall that divides 2 spaces - radiopaque
Long-term effects
Ridge
The optimum temperature for manual processing?
Septum
16. Two small openings (radiolucent) found on floor of nasal cavity->common exit is incisive foramen
Sinus
Superior Foramina of incisive canal
Zygoma
Floor of Nasal Cavity
17. Within maxillary sinus; acts as a division - radiopaque lines sometimes not visible
Zygomatic process of maxilla
Coherent Scatter
Septa within maxillary sinus
Dose Rate
18. Closed - pointed cone-high production of scatter - not used any longer.
Genial Tubercles
Conical PID
General Radiation
Alveolar Crest
19. Tubes within maxillary sinus that carry nerves - blood supply - radiolucent band with boundary of two radiopaque cortical bony lines
Free Radical Formation
Nutrient Canals
Coronoid Process
Compton Scatter
20. Bump or nodule that appears radiopaque
Maxillary Tuberosity
Rad (Radiation absorbed dose)
Superior Foramina of incisive canal
Tubercle
21. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)
Suture
Total dose
Fixer Solution
Nutrient Canals
22. Internal ridge of mandible muscle attachment - continuous with internal oblique ridge; radiopaque line
Mylohyoid Ridge
Amount of tissue irradiated
Alveolar Process
Septum
23. 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)
Dose Rate
Mental Foramen
External Oblique Ridge
Stochastic effects
24. 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
Lateral Fossa
Rad (Radiation absorbed dose)
Step-Down Transformer
25. Between canine and lateral incisor - depression is not always visible - radiolucent
Lingual Foramen
Lateral Fossa
Internal Oblique Ridge
Submandibular Fossa
26. Hole in bone below mandibular premolars - blood supply to lower lip exits here; radiolucent; often misdiagnosed for periapical pathology
Body of Mandible
Coherent Scatter
Ramus
Mental Foramen
27. 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
Nonthreshold dose-response curve
Collimation
Tubercle
Zygomatic process of maxilla
28. X-radiation created when the primary beam interacts with a matter
Secondary Radiation
Scatter Radiation
Added filtration
Median palatine suture
29. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness
Periodontal Ligament Space
Nasal Cavity/Fossa
Rad (Radiation absorbed dose)
Latent Period
30. Occurs very little; most photons pass through cell with little or no damage
Direct Injury
Zygoma
Submandibular Fossa
Median palatine suture
31. Surrounds root - cortical bone - radiopaque
Dose Rate
Rad (Radiation absorbed dose)
Radioresistant cells
Lamina Dura
32. All cells except reproductive; effects are seen in person irradiated
Periodontal Ligament Space
Latent Period
Somatic cells
Rem (Roentgen equivalent (in) man)
33. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band
External Oblique Ridge
Step-Down Transformer
Coherent Scatter
Maxillary sinus
34. 'Cheekbone'; cortical bone; radiopaque band extending from zygomatic process.
Zygoma
Step-Up Transformer
Inherent filtration
Rad (Radiation absorbed dose)
35. 68 Degrees F
Kilovoltage peak adjustment
Radioresistant cells
Radiosensitive cells
The optimum temperature for manual processing?
36. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve
Somatic cells
Mandibular Canal
Inverted Y
Nonthreshold dose-response curve
37. Produced when an electron hits the nucleus of a tungsten atom or passes very close to the nucleus of a tungsten atom.
Nonstochastic (deterministic) effects
General Radiation
Alveolar Crest
Radiosensitive cells
38. Depression of bone; submandibular salivary gland found here; radiolucent; below mylohyoid ridge
Ridge
Submandibular Fossa
Amount of tissue irradiated
Sinus
39. Cortical bone - radiopaque band above maxillary incisors
Ridge
Floor of Nasal Cavity
Compton Scatter
Cortical Bone
40. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines
Voltage
Septum
Nutrient Canals
Step-Down Transformer
41. 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.
Septa within maxillary sinus
Rad (Radiation absorbed dose)
Characteristic Radiation
Primary Radiation
42. Mature bone - muscle - nerve
Radioresistant cells
Long-term effects
External Oblique Ridge
The conditions required for the darkroom
43. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.
Nonthreshold dose-response curve
Maxillary Tuberosity
Septa within maxillary sinus
Canal
44. The measurement of the number of electrons moving through a conductor. Measured in amperes (A) or milliamperes (mA)
Amperage
Cancellous
Conical PID
Hamulus
45. 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)
Alveolar Process
Dose Rate
Maxillary sinus
Superior Foramina of incisive canal
46. Intersection of maxillary sinus and nasal cavity - radiopaque - cortical bone; above maxillary canine.
Nonthreshold dose-response curve
Inverted Y
Nasal Cavity/Fossa
Added filtration
47. Tube that passes through bone - contains nerve canals/blood vessels/and appears radiolucent
The optimum temperature for manual processing?
Periodontal Ligament Space
Contrast
Canal
48. Opening/hole in bone that allows the passage of blood vessels/nerves and appears radiolucent
Hamulus
Foramen
Zygoma
Roentgen
49. Do not occur in dentistry
Scatter Radiation
Direct Injury
Septa within maxillary sinus
Short-term effects
50. Marked prominence that appears radiopaque.
Alveolar Crest
Maxillary sinus
Process
Amperage