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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. 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)
Foramen
Dose Rate
Nonthreshold dose-response curve
Cancellous
2. 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.
Total (inherent + added) filtration
Zygomatic process of maxilla
Submandibular Fossa
Alveolar Process
3. Bump or nodule that appears radiopaque
Characteristic Radiation
Voltage
Foramen
Tubercle
4. 'Cheekbone'; cortical bone; radiopaque band extending from zygomatic process.
Contrast
Tuberosity
Zygoma
Free Radical Formation
5. Sievart
Short-term effects
Sinus
Rem (Roentgen equivalent (in) man)
Septa within maxillary sinus
6. 'Cortex'-> dense - outer layer; also called compact bone-appears radiopaque on film
Coherent Scatter
Density
Suture
Cortical Bone
7. Sharp - thornlike projection that appears radiopaque.
Spine
Body of Mandible
Short-term effects
Developer Solution
8. Tubes within maxillary sinus that carry nerves - blood supply - radiolucent band with boundary of two radiopaque cortical bony lines
Alveolar Process
Rem (Roentgen equivalent (in) man)
Nutrient Canals
Spine
9. Surrounded by genial tubercle - hole in bone near mandibular midline - radiolucent
Coherent Scatter
Incisive (Nasopalatine) Foramen
Rem (Roentgen equivalent (in) man)
Lingual Foramen
10. Scooped out of depressed area of bone that appears radiolucent
Scatter Radiation
Fossa
Characteristic Radiation
Cell sensitivity
11. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area
Internal Oblique Ridge
The conditions required for the darkroom
Sinus
Characteristic Radiation
12. Between canine and lateral incisor - depression is not always visible - radiolucent
Alveolar Crest
Conical PID
Lateral Fossa
Process
13. A form of secondary radiation - the result of x-rays that has been deflected from its path by an interaction with matter.
Genetic cells
Scatter Radiation
Septum
Incisive (Nasopalatine) Foramen
14. Anterior ramus of mandible; attachment for muscle of mastication; superimposed around maxillary tuberosity.
Coronoid Process
Fossa
Milliamperage adjustment
Nutrient Canals
15. U-shaped portion extending from ramus to ramus
General Radiation
Characteristic Radiation
Total (inherent + added) filtration
Body of Mandible
16. Cortical bone - radiopaque band above maxillary incisors
Floor of Nasal Cavity
Secondary Radiation
Lamina Dura
Added filtration
17. Reproductive (ova - sperm). Effects are passed on to generations. Genetic damage cannot be repaired
Genetic cells
Septa within maxillary sinus
Roentgen
Developer Solution
18. The penetrating x-ray beam that is produced at the target of the anode
Body of Mandible
Nutrient Canals
Stochastic effects
Primary Radiation
19. Small lymphocyte - bone marrow - reproductive cells - immature bone
Radiosensitive cells
Cell sensitivity
Genetic cells
Developer Solution
20. Tube that travels length of mandible - radiolucent; has cortical walls - houses inferior alveolar nerve
Secondary Radiation
Total dose
Lateral Fossa
Mandibular Canal
21. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.
Rectangular and round PID
Inverted Y
External Oblique Ridge
Canal
22. Occurs frequently due to the high concentration of water in cells.
Fixer Solution
Ridge
Indirect injury
Cortical Bone
23. 'Arranged like a lattice'->soft - spongy bone located between 2 layers of cortical bone; spaces are trabeculae that are filled with bone marrow.
Canal
Step-Down Transformer
Cancellous
Periodontal Ligament Space
24. The measurement of the number of electrons moving through a conductor. Measured in amperes (A) or milliamperes (mA)
Internal Oblique Ridge
Rad (Radiation absorbed dose)
Amperage
The conditions required for the darkroom
25. Can increase or decrease the number of electrons passing through the cathode filament
Contrast
Milliamperage adjustment
Maxillary Tuberosity
Suture
26. 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
Tubercle
Secondary Radiation
General Radiation
27. Bony prominence posterior to maxillary third molar; radiopaque
Amount of tissue irradiated
Maxillary Tuberosity
Free Radical Formation
Direct Injury
28. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)
Total dose
Lateral Fossa
Spine
Lamina Dura
29. The x-ray photon is deflected from its path during its passage through matter
Compton Scatter
Periodontal Ligament Space
Internal Oblique Ridge
Step-Up Transformer
30. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines
Mylohyoid Ridge
Inferior Nasal Conchae
Nutrient Canals
Fixer Solution
31. Cortical bone; J or U shaped radiopacity
Zygomatic process of maxilla
Mandibular Canal
Nonstochastic (deterministic) effects
Radioresistant cells
32. Surrounds root - cortical bone - radiopaque
Latent Period
Compton Scatter
Radioresistant cells
Lamina Dura
33. Used to increase incoming voltage to 65 -000 to 100 -000 volts used by the high-voltage circuit.
Nasal Cavity/Fossa
The conditions required for the darkroom
Dose Rate
Step-Up Transformer
34. Encases/supports teeth
Zygomatic process of maxilla
Incisive (Nasopalatine) Foramen
Alveolar Process
Lateral Fossa
35. 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.
Sinus
Inferior Nasal Conchae
Rem (Roentgen equivalent (in) man)
Characteristic Radiation
36. Located above maxillary premolar/molar teeth - border is made up of cortical bone; sinus cavity is radiolucent compartment
Rectangular and round PID
Maxillary sinus
Conical PID
Cortical Bone
37. Closed - pointed cone-high production of scatter - not used any longer.
Conical PID
Cancellous
Secondary Radiation
General Radiation
38. Do not occur in dentistry
Internal Oblique Ridge
Short-term effects
Mandibular Canal
Total (inherent + added) filtration
39. Marked prominence that appears radiopaque.
Tuberosity
Hamulus
Process
Somatic cells
40. 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
Incisive (Nasopalatine) Foramen
Sinus
Foramen
41. Coulombs per kilogram
Kilovoltage peak adjustment
Mandibular Canal
Amperage
Roentgen
42. Continues from ramus; radiopaque band
External Oblique Ridge
Internal Oblique Ridge
Fixer Solution
Nonthreshold dose-response curve
43. Two small openings (radiolucent) found on floor of nasal cavity->common exit is incisive foramen
Superior Foramina of incisive canal
Foramen
Canal
Tuberosity
44. All cells except reproductive; effects are seen in person irradiated
Total dose
Somatic cells
Septa within maxillary sinus
Nutrient Canals
45. An x-ray photon that has its path altered by matter.
Developer Solution
Anterior Nasal Spine
Coherent Scatter
Inferior Nasal Conchae
46. Effects seen years - decades - or generations later
Internal Oblique Ridge
Long-term effects
Nutrient Canals
Scatter Radiation
47. Opening/hole in bone that allows the passage of blood vessels/nerves and appears radiolucent
Voltage
Foramen
Ramus
Kilovoltage peak adjustment
48. Reduces exposed silver halide crystals into black metallic silver a makes dark/black areas on film; unexposed silver halide crystals are unaffected by developer
External Oblique Ridge
Compton Scatter
Coronoid Process
Developer Solution
49. Somatic effects that have a threshold; effects increase in severity with increasing absorbed dose. (Examples: Erythema - loss of hair - cataracts - and decreased fertility)
Characteristic Radiation
Floor of Nasal Cavity
Nonstochastic (deterministic) effects
Short-term effects
50. Hollow space - cavity that appears radiolucent
Developer Solution
Sinus
Foramen
Conical PID