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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. 'Arranged like a lattice'->soft - spongy bone located between 2 layers of cortical bone; spaces are trabeculae that are filled with bone marrow.
Cancellous
Mental Foramen
Cell sensitivity
The conditions required for the darkroom
2. An x-ray photon that has its path altered by matter.
Coherent Scatter
Inverted Y
Suture
Collimation
3. Marked prominence that appears radiopaque.
Canal
Septum
Process
Stochastic effects
4. Surrounds root - cortical bone - radiopaque
Nutrient Canals
Alveolar Process
Nonthreshold dose-response curve
Lamina Dura
5. Somatic effects that have a threshold; effects increase in severity with increasing absorbed dose. (Examples: Erythema - loss of hair - cataracts - and decreased fertility)
Internal Oblique Ridge
Contrast
Nonstochastic (deterministic) effects
Direct Injury
6. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band
Lingual Foramen
Sinus
Cortical Bone
External Oblique Ridge
7. 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
Inverted Y
Collimation
Secondary Radiation
Rad (Radiation absorbed dose)
8. Linear prominence that appears radiopaque.
Ridge
Inverted Y
Nutrient Canals
Roentgen
9. Removes unexposed silver halide crystals and creates white/clear areas on film; black metallic silver remains on film.
Characteristic Radiation
Radioresistant cells
Fixer Solution
Density
10. Bony wall that divides 2 spaces - radiopaque
Septum
Long-term effects
Incisive (Nasopalatine) Foramen
Fossa
11. Intersection of maxillary sinus and nasal cavity - radiopaque - cortical bone; above maxillary canine.
Conical PID
Cell sensitivity
Total (inherent + added) filtration
Inverted Y
12. 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)
Total dose
Ridge
Fossa
Dose Rate
13. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line
Added filtration
Median palatine suture
General Radiation
Cell sensitivity
14. Occurs very little; most photons pass through cell with little or no damage
Total (inherent + added) filtration
External Oblique Ridge
Direct Injury
Septum
15. 68 Degrees F
The optimum temperature for manual processing?
Zygoma
Mandibular Canal
Inferior Nasal Conchae
16. Within maxillary sinus; acts as a division - radiopaque lines sometimes not visible
Cortical Bone
Body of Mandible
Coherent Scatter
Septa within maxillary sinus
17. Hole in bone below mandibular premolars - blood supply to lower lip exits here; radiolucent; often misdiagnosed for periapical pathology
Nutrient Canals
Mental Foramen
Stochastic effects
Maxillary Tuberosity
18. All cells except reproductive; effects are seen in person irradiated
Zygoma
Lateral Fossa
Tuberosity
Somatic cells
19. Posterior to mandibular third molar
Septum
Ramus
External Oblique Ridge
Superior Foramina of incisive canal
20. Do not occur in dentistry
Zygoma
Amount of tissue irradiated
Short-term effects
Alveolar Process
21. Gray
Rad (Radiation absorbed dose)
Lamina Dura
Roentgen
Septum
22. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.
Hamulus
Short-term effects
Nonthreshold dose-response curve
Suture
23. Sharp - thornlike projection that appears radiopaque.
Ridge
Dose Rate
Fossa
Spine
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
Nutrient Canals
Sinus
Total (inherent + added) filtration
25. Two small openings (radiolucent) found on floor of nasal cavity->common exit is incisive foramen
Superior Foramina of incisive canal
Amperage
Septum
Mandibular Canal
26. Encases/supports teeth
Alveolar Process
Total dose
Nutrient Canals
Long-term effects
27. Reproductive (ova - sperm). Effects are passed on to generations. Genetic damage cannot be repaired
Radiosensitive cells
External Oblique Ridge
Fossa
Genetic cells
28. The x-ray photon is deflected from its path during its passage through matter
Floor of Nasal Cavity
Spine
Compton Scatter
Voltage
29. Bump or nodule that appears radiopaque
Contrast
Radioresistant cells
Tubercle
Nonstochastic (deterministic) effects
30. Continues from ramus; radiopaque band
Septum
Internal Oblique Ridge
Nonstochastic (deterministic) effects
Compton Scatter
31. 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)
Stochastic effects
Hamulus
Zygomatic process of maxilla
Rad (Radiation absorbed dose)
32. Used to increase incoming voltage to 65 -000 to 100 -000 volts used by the high-voltage circuit.
Fixer Solution
Developer Solution
Fossa
Step-Up Transformer
33. U-shaped portion extending from ramus to ramus
Nutrient Canals
Body of Mandible
Secondary Radiation
Nonstochastic (deterministic) effects
34. Small lymphocyte - bone marrow - reproductive cells - immature bone
Radiosensitive cells
Body of Mandible
Scatter Radiation
Floor of Nasal Cavity
35. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent
Scatter Radiation
Indirect injury
Lingual Foramen
Floor of Nasal Cavity
36. Pear shaped compartment - appears above maxillary incisors. Appears as a large radiolucent area above the maxilla.
Mandibular Canal
Nasal Cavity/Fossa
Median palatine suture
Radiosensitive cells
37. Bump of bone - muscle attachment; lingual aspect of mandible - 'ring shaped' radiopacitiy below mandibular incisors.
Coherent Scatter
External Oblique Ridge
Genial Tubercles
Periodontal Ligament Space
38. More damage can occur in younger or rapidly dividing cells
Inferior Nasal Conchae
Rectangular and round PID
Maxillary Tuberosity
Cell sensitivity
39. 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.
External Oblique Ridge
Coronoid Process
Amperage
Total (inherent + added) filtration
40. 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
Stochastic effects
Contrast
Nonthreshold dose-response curve
Canal
41. Opening/hole in bone that allows the passage of blood vessels/nerves and appears radiolucent
Nonstochastic (deterministic) effects
Foramen
Incisive (Nasopalatine) Foramen
Step-Up Transformer
42. Between canine and lateral incisor - depression is not always visible - radiolucent
Process
Lateral Fossa
Suture
Zygoma
43. Sievart
Conical PID
Kilovoltage peak adjustment
Rem (Roentgen equivalent (in) man)
Lamina Dura
44. Located above maxillary premolar/molar teeth - border is made up of cortical bone; sinus cavity is radiolucent compartment
Inferior Nasal Conchae
Septum
Maxillary sinus
Superior Foramina of incisive canal
45. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)
Nutrient Canals
Anterior Nasal Spine
Total dose
Lingual Foramen
46. X-radiation created when the primary beam interacts with a matter
Mental Foramen
Secondary Radiation
Long-term effects
Indirect injury
47. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness
Nasal Cavity/Fossa
Lingual Foramen
Maxillary sinus
Periodontal Ligament Space
48. 'Cheekbone'; cortical bone; radiopaque band extending from zygomatic process.
Submandibular Fossa
Sinus
Zygoma
Inherent filtration
49. 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)
Floor of Nasal Cavity
Septum
Zygoma
Voltage
50. Hollow space - cavity that appears radiolucent
Sinus
Radiosensitive cells
Tubercle
Floor of Nasal Cavity