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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. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area
Maxillary sinus
The conditions required for the darkroom
Genial Tubercles
Characteristic Radiation
2. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve
Septum
Genetic cells
Mandibular Canal
Anterior Nasal Spine
3. The x-ray photon is deflected from its path during its passage through matter
Genetic cells
Rectangular and round PID
Alveolar Process
Compton Scatter
4. Small lymphocyte - bone marrow - reproductive cells - immature bone
Alveolar Process
Hamulus
Radiosensitive cells
Nonstochastic (deterministic) effects
5. 'Cheekbone'; cortical bone; radiopaque band extending from zygomatic process.
Zygomatic process of maxilla
Short-term effects
Total (inherent + added) filtration
Zygoma
6. Do not occur in dentistry
Zygoma
Contrast
Maxillary Tuberosity
Short-term effects
7. Coronal part of alveolar bone - between teeth - cortical bone - radiopaque
Rectangular and round PID
Maxillary Tuberosity
Foramen
Alveolar Crest
8. Two small openings (radiolucent) found on floor of nasal cavity->common exit is incisive foramen
Primary Radiation
Superior Foramina of incisive canal
Ridge
Submandibular Fossa
9. Between canine and lateral incisor - depression is not always visible - radiolucent
Lateral Fossa
Inverted Y
Body of Mandible
Zygomatic process of maxilla
10. Can increase or decrease the number of electrons passing through the cathode filament
Milliamperage adjustment
Latent Period
Compton Scatter
Radioresistant cells
11. Produced when an electron hits the nucleus of a tungsten atom or passes very close to the nucleus of a tungsten atom.
Short-term effects
General Radiation
Ramus
Lateral Fossa
12. 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)
Fixer Solution
Stochastic effects
Foramen
Inverted Y
13. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.
Rectangular and round PID
Zygomatic process of maxilla
Mandibular Canal
Cancellous
14. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.
Nonstochastic (deterministic) effects
Amount of tissue irradiated
Nonthreshold dose-response curve
Zygoma
15. Gray
Rad (Radiation absorbed dose)
Nonthreshold dose-response curve
Short-term effects
Lamina Dura
16. More damage can occur in younger or rapidly dividing cells
Cell sensitivity
Rem (Roentgen equivalent (in) man)
Ridge
Inverted Y
17. Somatic effects that have a threshold; effects increase in severity with increasing absorbed dose. (Examples: Erythema - loss of hair - cataracts - and decreased fertility)
Periodontal Ligament Space
Ridge
Mylohyoid Ridge
Nonstochastic (deterministic) effects
18. Thin - curved areas of bone - radiopacities within nasal cavity and septum
Inferior Nasal Conchae
Lamina Dura
Mental Foramen
Nasal Cavity/Fossa
19. Can control the current passing from the cathode to the anode.
Characteristic Radiation
Inherent filtration
Nonstochastic (deterministic) effects
Kilovoltage peak adjustment
20. Bony prominence posterior to maxillary third molar; radiopaque
Genial Tubercles
Nasal Cavity/Fossa
Cell sensitivity
Maxillary Tuberosity
21. A line of union between adjoining bones - found only in skull; appears as radiolucent line
Suture
Voltage
Stochastic effects
The conditions required for the darkroom
22. V-shaped radiopacity at intersection of floor of nasal cavity and septum
Submandibular Fossa
Secondary Radiation
Anterior Nasal Spine
Total (inherent + added) filtration
23. Occurs frequently due to the high concentration of water in cells.
Cortical Bone
Indirect injury
Spine
Total dose
24. Scooped out of depressed area of bone that appears radiolucent
Fossa
Foramen
Nasal Cavity/Fossa
Cortical Bone
25. 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)
Voltage
Inherent filtration
Dose Rate
External Oblique Ridge
26. 'Cortex'-> dense - outer layer; also called compact bone-appears radiopaque on film
Cortical Bone
Fossa
Nonthreshold dose-response curve
Long-term effects
27. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band
Rem (Roentgen equivalent (in) man)
Spine
Compton Scatter
External Oblique Ridge
28. Primary beam passes through glass window - insulating oil - tubehead seal. 0.5 to 1.0 mm of aluminum
Inherent filtration
Nutrient Canals
Lingual Foramen
Coronoid Process
29. U-shaped portion extending from ramus to ramus
Nutrient Canals
Mandibular Canal
Maxillary sinus
Body of Mandible
30. Located above maxillary premolar/molar teeth - border is made up of cortical bone; sinus cavity is radiolucent compartment
Maxillary sinus
Conical PID
Alveolar Process
Periodontal Ligament Space
31. Reduces exposed silver halide crystals into black metallic silver a makes dark/black areas on film; unexposed silver halide crystals are unaffected by developer
Radioresistant cells
Developer Solution
Maxillary sinus
Inherent filtration
32. Cell damage occurs through formation of 'free radicals'. Free radicals are formed when an x-ray photon ionizes water.
Alveolar Crest
Septum
Kilovoltage peak adjustment
Free Radical Formation
33. Encases/supports teeth
Submandibular Fossa
Periodontal Ligament Space
Alveolar Process
Voltage
34. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent
External Oblique Ridge
Total dose
Compton Scatter
Lingual Foramen
35. Aluminum disks between collimator and tubehead seal. Aluminum disks filter long wavelength - low energy x-rays from x-ray beam. 0.5 mm increments
Lateral Fossa
Radioresistant cells
Added filtration
Periodontal Ligament Space
36. Posterior to mandibular third molar
Primary Radiation
Zygomatic process of maxilla
Ramus
Canal
37. Bony wall that divides 2 spaces - radiopaque
Foramen
Developer Solution
Free Radical Formation
Septum
38. An x-ray photon that has its path altered by matter.
Somatic cells
Latent Period
Coherent Scatter
Milliamperage adjustment
39. Time between exposure to ionizing radiation and the appearance of observable clinical signs.
Alveolar Crest
Lingual Foramen
Collimation
Latent Period
40. 'hooklike' - posterior to maxillary tuberosity; extension of medial pterygoid plate of sphenoid bone; radiopaque
Alveolar Process
Hamulus
Body of Mandible
Tubercle
41. Rounded prominence that appears radiopaque
Amount of tissue irradiated
Scatter Radiation
Fixer Solution
Tuberosity
42. Pear shaped compartment - appears above maxillary incisors. Appears as a large radiolucent area above the maxilla.
Nasal Cavity/Fossa
Superior Foramina of incisive canal
Inferior Nasal Conchae
Foramen
43. 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)
Zygoma
Voltage
Direct Injury
Septa within maxillary sinus
44. Bump or nodule that appears radiopaque
Alveolar Crest
Mandibular Canal
Tubercle
Primary Radiation
45. Intersection of maxillary sinus and nasal cavity - radiopaque - cortical bone; above maxillary canine.
Inverted Y
Roentgen
Milliamperage adjustment
Process
46. Closed - pointed cone-high production of scatter - not used any longer.
Step-Down Transformer
Conical PID
Mandibular Canal
Floor of Nasal Cavity
47. All cells except reproductive; effects are seen in person irradiated
Inferior Nasal Conchae
Lamina Dura
Internal Oblique Ridge
Somatic cells
48. Continues from ramus; radiopaque band
Internal Oblique Ridge
Step-Down Transformer
Latent Period
Free Radical Formation
49. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)
Nutrient Canals
Added filtration
Total dose
Voltage
50. Anterior ramus of mandible; attachment for muscle of mastication; superimposed around maxillary tuberosity.
Rad (Radiation absorbed dose)
Cell sensitivity
Direct Injury
Coronoid Process