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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. Continues from ramus; radiopaque band
Secondary Radiation
Mental Foramen
Internal Oblique Ridge
Incisive (Nasopalatine) Foramen
2. Anterior ramus of mandible; attachment for muscle of mastication; superimposed around maxillary tuberosity.
Process
Coronoid Process
Step-Down Transformer
Hamulus
3. Mature bone - muscle - nerve
Suture
Radioresistant cells
Zygoma
Amount of tissue irradiated
4. A line of union between adjoining bones - found only in skull; appears as radiolucent line
Body of Mandible
Suture
Free Radical Formation
Internal Oblique Ridge
5. Posterior to mandibular third molar
Ramus
Lamina Dura
General Radiation
Periodontal Ligament Space
6. Coronal part of alveolar bone - between teeth - cortical bone - radiopaque
Compton Scatter
Fixer Solution
Alveolar Crest
Periodontal Ligament Space
7. Bony prominence posterior to maxillary third molar; radiopaque
Floor of Nasal Cavity
Canal
Submandibular Fossa
Maxillary Tuberosity
8. Sievart
Total (inherent + added) filtration
Rem (Roentgen equivalent (in) man)
Collimation
Roentgen
9. Used to increase incoming voltage to 65 -000 to 100 -000 volts used by the high-voltage circuit.
Milliamperage adjustment
Radiosensitive cells
Direct Injury
Step-Up Transformer
10. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines
Genial Tubercles
Stochastic effects
Nutrient Canals
Zygoma
11. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.
Rectangular and round PID
Alveolar Crest
Ramus
Median palatine suture
12. U-shaped portion extending from ramus to ramus
Nutrient Canals
Fixer Solution
Body of Mandible
Submandibular Fossa
13. All cells except reproductive; effects are seen in person irradiated
Roentgen
Direct Injury
Somatic cells
Total (inherent + added) filtration
14. Small lymphocyte - bone marrow - reproductive cells - immature bone
Spine
Scatter Radiation
Radiosensitive cells
Voltage
15. Cell damage occurs through formation of 'free radicals'. Free radicals are formed when an x-ray photon ionizes water.
Sinus
Free Radical Formation
Fixer Solution
Maxillary sinus
16. Gray
Amperage
Foramen
Tuberosity
Rad (Radiation absorbed dose)
17. Surrounds root - cortical bone - radiopaque
The optimum temperature for manual processing?
Lingual Foramen
Total (inherent + added) filtration
Lamina Dura
18. Somatic effects that have a threshold; effects increase in severity with increasing absorbed dose. (Examples: Erythema - loss of hair - cataracts - and decreased fertility)
Anterior Nasal Spine
Nonstochastic (deterministic) effects
Nonthreshold dose-response curve
General Radiation
19. Cortical bone; J or U shaped radiopacity
Zygomatic process of maxilla
Total (inherent + added) filtration
Inferior Nasal Conchae
Body of Mandible
20. 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
Nutrient Canals
Collimation
Maxillary sinus
Free Radical Formation
21. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)
Total dose
Inverted Y
Lateral Fossa
Canal
22. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent
Hamulus
Mental Foramen
Direct Injury
Lingual Foramen
23. The measurement of the number of electrons moving through a conductor. Measured in amperes (A) or milliamperes (mA)
Nasal Cavity/Fossa
Coherent Scatter
Primary Radiation
Amperage
24. 'hooklike' - posterior to maxillary tuberosity; extension of medial pterygoid plate of sphenoid bone; radiopaque
Short-term effects
Hamulus
Internal Oblique Ridge
Zygoma
25. Do not occur in dentistry
Process
Periodontal Ligament Space
Radiosensitive cells
Short-term effects
26. 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
Ridge
Alveolar Crest
Lateral Fossa
27. 'Cheekbone'; cortical bone; radiopaque band extending from zygomatic process.
Zygoma
Maxillary Tuberosity
Milliamperage adjustment
Latent Period
28. Rounded prominence that appears radiopaque
Indirect injury
Tuberosity
Rectangular and round PID
Lamina Dura
29. 'Cortex'-> dense - outer layer; also called compact bone-appears radiopaque on film
Somatic cells
Cortical Bone
Kilovoltage peak adjustment
Density
30. 'Arranged like a lattice'->soft - spongy bone located between 2 layers of cortical bone; spaces are trabeculae that are filled with bone marrow.
Cancellous
External Oblique Ridge
Septa within maxillary sinus
Body of Mandible
31. An x-ray photon that has its path altered by matter.
Suture
Alveolar Process
Coherent Scatter
Indirect injury
32. Scooped out of depressed area of bone that appears radiolucent
The conditions required for the darkroom
Collimation
Alveolar Crest
Fossa
33. Bump of bone - muscle attachment; lingual aspect of mandible - 'ring shaped' radiopacitiy below mandibular incisors.
The optimum temperature for manual processing?
Genial Tubercles
Spine
General Radiation
34. The x-ray photon is deflected from its path during its passage through matter
Floor of Nasal Cavity
Compton Scatter
Septa within maxillary sinus
Fixer Solution
35. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve
Mandibular Canal
Primary Radiation
Septum
Radiosensitive cells
36. Darkness or blackness on film. If kVp is increased film will be darker. If decreased - film will be lighter
Density
Long-term effects
Cortical Bone
Cancellous
37. Reduces exposed silver halide crystals into black metallic silver a makes dark/black areas on film; unexposed silver halide crystals are unaffected by developer
Primary Radiation
External Oblique Ridge
Body of Mandible
Developer Solution
38. 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)
Voltage
Long-term effects
Coronoid Process
Nonthreshold dose-response curve
39. Area of body exposed total body produced more adverse effects
Amount of tissue irradiated
Periodontal Ligament Space
Zygomatic process of maxilla
Primary Radiation
40. Sharp - thornlike projection that appears radiopaque.
Maxillary Tuberosity
Spine
Indirect injury
Tubercle
41. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness
Conical PID
Rem (Roentgen equivalent (in) man)
Periodontal Ligament Space
Genetic cells
42. Linear prominence that appears radiopaque.
Ramus
External Oblique Ridge
Ridge
General Radiation
43. Pear shaped compartment - appears above maxillary incisors. Appears as a large radiolucent area above the maxilla.
Roentgen
Nasal Cavity/Fossa
Kilovoltage peak adjustment
Maxillary sinus
44. Encases/supports teeth
Developer Solution
Alveolar Process
Body of Mandible
Septum
45. Used to decrease voltage from the incoming 110- or 220-line voltage to the 3 to 5 volts used by the filament circuit.
Step-Down Transformer
Primary Radiation
Milliamperage adjustment
Foramen
46. Within maxillary sinus; acts as a division - radiopaque lines sometimes not visible
Septum
Internal Oblique Ridge
Indirect injury
Septa within maxillary sinus
47. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band
Periodontal Ligament Space
External Oblique Ridge
Internal Oblique Ridge
Milliamperage adjustment
48. A form of secondary radiation - the result of x-rays that has been deflected from its path by an interaction with matter.
Incisive (Nasopalatine) Foramen
Total dose
Collimation
Scatter Radiation
49. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line
Median palatine suture
Zygoma
Indirect injury
Long-term effects
50. Effects seen years - decades - or generations later
Septum
Long-term effects
Body of Mandible
Genial Tubercles