SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Depression of bone; submandibular salivary gland found here; radiolucent; below mylohyoid ridge
Density
Mental Foramen
Submandibular Fossa
Latent Period
2. 16-20 square feet (at least 4x4) - Light tight - Safelight must be at least 4 feet from the working area
Nonstochastic (deterministic) effects
Superior Foramina of incisive canal
The conditions required for the darkroom
Indirect injury
3. Occurs very little; most photons pass through cell with little or no damage
Median palatine suture
Somatic cells
Radioresistant cells
Direct Injury
4. Mostly seen in mandibular nerve/blood supply vertical radiolucent lines
Nutrient Canals
Contrast
Amount of tissue irradiated
Sinus
5. 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
Lateral Fossa
Contrast
Body of Mandible
The optimum temperature for manual processing?
6. 8 inch and 16 inch; longer are preferred due to less divergence of beam - open ended and lead lined.
The conditions required for the darkroom
Cell sensitivity
Rectangular and round PID
Latent Period
7. Reduces exposed silver halide crystals into black metallic silver a makes dark/black areas on film; unexposed silver halide crystals are unaffected by developer
Inferior Nasal Conchae
Cell sensitivity
Incisive (Nasopalatine) Foramen
Developer Solution
8. Quantity of radiation received or total amount absorbed (more damage with tissue absorbing large quantities of radiation)
Primary Radiation
Cell sensitivity
Short-term effects
Total dose
9. Can control the current passing from the cathode to the anode.
Internal Oblique Ridge
Kilovoltage peak adjustment
Alveolar Process
Periodontal Ligament Space
10. Do not occur in dentistry
Nutrient Canals
Genial Tubercles
Ramus
Short-term effects
11. Used to increase incoming voltage to 65 -000 to 100 -000 volts used by the high-voltage circuit.
Step-Up Transformer
Rectangular and round PID
Indirect injury
Lamina Dura
12. Superior to internal oblique ridge; anterior border of ramus ends in external oblique ridge; radiopaque band
Coherent Scatter
External Oblique Ridge
Somatic cells
Secondary Radiation
13. Bony wall that divides 2 spaces - radiopaque
Septum
Inherent filtration
Total (inherent + added) filtration
Conical PID
14. An x-ray photon that has its path altered by matter.
Lingual Foramen
Coherent Scatter
Coronoid Process
Cell sensitivity
15. 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)
Mandibular Canal
Voltage
Zygoma
Contrast
16. 'Cortex'-> dense - outer layer; also called compact bone-appears radiopaque on film
Amount of tissue irradiated
Cortical Bone
Incisive (Nasopalatine) Foramen
Short-term effects
17. Cell damage occurs through formation of 'free radicals'. Free radicals are formed when an x-ray photon ionizes water.
Free Radical Formation
Fossa
Secondary Radiation
Alveolar Process
18. The measurement of the number of electrons moving through a conductor. Measured in amperes (A) or milliamperes (mA)
Long-term effects
Short-term effects
Amperage
Somatic cells
19. Produced when an electron hits the nucleus of a tungsten atom or passes very close to the nucleus of a tungsten atom.
Collimation
Rad (Radiation absorbed dose)
Genial Tubercles
General Radiation
20. Suggest that no matter how small the amount of radiation received - some biologic damage occurs.
Hamulus
Rectangular and round PID
Nonthreshold dose-response curve
Median palatine suture
21. The penetrating x-ray beam that is produced at the target of the anode
Canal
Primary Radiation
Zygomatic process of maxilla
Spine
22. V-shaped radiopacity at intersection of floor of nasal cavity and septum
Submandibular Fossa
The optimum temperature for manual processing?
Anterior Nasal Spine
Fixer Solution
23. Marked prominence that appears radiopaque.
Milliamperage adjustment
Primary Radiation
Superior Foramina of incisive canal
Process
24. Intersection of maxillary sinus and nasal cavity - radiopaque - cortical bone; above maxillary canine.
The conditions required for the darkroom
Tuberosity
Inverted Y
Septum
25. Small lymphocyte - bone marrow - reproductive cells - immature bone
Radiosensitive cells
Superior Foramina of incisive canal
Body of Mandible
Primary Radiation
26. Darkness or blackness on film. If kVp is increased film will be darker. If decreased - film will be lighter
Long-term effects
Nutrient Canals
Density
Characteristic Radiation
27. Scooped out of depressed area of bone that appears radiolucent
Fossa
General Radiation
Nutrient Canals
Cortical Bone
28. Can increase or decrease the number of electrons passing through the cathode filament
General Radiation
Compton Scatter
Anterior Nasal Spine
Milliamperage adjustment
29. Between canine and lateral incisor - depression is not always visible - radiolucent
Lateral Fossa
Stochastic effects
Anterior Nasal Spine
Characteristic Radiation
30. Reproductive (ova - sperm). Effects are passed on to generations. Genetic damage cannot be repaired
Zygomatic process of maxilla
Zygoma
Genetic cells
Fixer Solution
31. 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)
Long-term effects
Dose Rate
Ramus
Nonthreshold dose-response curve
32. Time between exposure to ionizing radiation and the appearance of observable clinical signs.
Latent Period
Hamulus
Radioresistant cells
Alveolar Crest
33. Effects seen years - decades - or generations later
Lingual Foramen
Radioresistant cells
Suture
Long-term effects
34. Hole in bone below mandibular premolars - blood supply to lower lip exits here; radiolucent; often misdiagnosed for periapical pathology
Median palatine suture
Mental Foramen
Genial Tubercles
Inverted Y
35. Sievart
Rem (Roentgen equivalent (in) man)
Internal Oblique Ridge
Direct Injury
Nonstochastic (deterministic) effects
36. 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
Primary Radiation
Milliamperage adjustment
Direct Injury
37. Extends from alveolar bone between maxillary centrals to posterior hard palate; seen as a radiolucent line
Indirect injury
Zygomatic process of maxilla
Median palatine suture
Nutrient Canals
38. Opening/hole in bone that allows the passage of blood vessels/nerves and appears radiolucent
Foramen
Cortical Bone
External Oblique Ridge
Tubercle
39. Coulombs per kilogram
General Radiation
Roentgen
Internal Oblique Ridge
Submandibular Fossa
40. Hollow space - cavity that appears radiolucent
Sinus
Superior Foramina of incisive canal
Added filtration
External Oblique Ridge
41. U-shaped portion extending from ramus to ramus
Genetic cells
Coronoid Process
Body of Mandible
Spine
42. Posterior to mandibular third molar
Ramus
Stochastic effects
Inherent filtration
Nutrient Canals
43. Coronal part of alveolar bone - between teeth - cortical bone - radiopaque
External Oblique Ridge
Coronoid Process
Nasal Cavity/Fossa
Alveolar Crest
44. Linear prominence that appears radiopaque.
Long-term effects
Spine
Ridge
Hamulus
45. Occurs frequently due to the high concentration of water in cells.
Process
Alveolar Process
Indirect injury
Floor of Nasal Cavity
46. Mature bone - muscle - nerve
Total (inherent + added) filtration
Radioresistant cells
Dose Rate
Step-Down Transformer
47. Located at the midline of anterior portion of hard palate behind maxillary central incisors; round radiolucency between roots of centrals
Nutrient Canals
Incisive (Nasopalatine) Foramen
Step-Up Transformer
Rectangular and round PID
48. Sharp - thornlike projection that appears radiopaque.
Lateral Fossa
Zygoma
The conditions required for the darkroom
Spine
49. Used to decrease voltage from the incoming 110- or 220-line voltage to the 3 to 5 volts used by the filament circuit.
Genial Tubercles
Latent Period
Step-Down Transformer
Maxillary sinus
50. Space between root and the lamina dura - thin - radiolucent line - healthy PDL is uniform thickness
Periodontal Ligament Space
External Oblique Ridge
Median palatine suture
Kilovoltage peak adjustment