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NWHSU Skeletal Radiology 1 Final (Lecture Portion) Exam Questions and Answers
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NWHSU Skeletal Radiology 1 Final (Lecture Portion) Exam Questions and Answers
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NWHSU Skeletal Radiology 1 Final(Lecture Portion) Exam Questions and
Answers
Who discovered the X-Ray? - Answers -Wilhelm Roentgen (German physicist),
somewhat by accident upon investigating properties of cathode ray tubes.
What are some properties of x-Rays? - Answers -- invisible to naked eye
- can expose both photographic and radiographic film
-are a apart of the electromagnetic spectrum and travel at the speed of light
-can be highly penetrating
-can produce biological mutations by inducing molecular alterations
What does it mean to say that a structure is Radio-opaque? (appears as white on x-ray)
- Answers -Is too thick, or dense for x-rays to pass through.
What does it mean to say that a structure is Radio-lucent? (appears darker, even black
on x-ray) - Answers -X-rays can easily pass through the structure, or substance/
True or False - Metal is most opaque on x-ray? - Answers -True
True or False - Air is most lucent on x-ray? - Answers -True
Rank from most opaque to least opaque? (Fat, Bone, Air, Metal, Soft Tissue/Water) -
Answers -Metal (Most opaque)
Bone
Soft Tissue/Water
Fat
Air (Least opaque)
Rank from Most lucent to least lucent? (Fat, Bone, Air, Metal, Soft Tissue/Water) -
Answers -Air (Most lucent a.k.a. least opaque)
Fat
Soft Tissue/Water
Bone
Metal (Least lucent a.k.a. most opaque)
Examples of Water Density structures/soft tissue density structures? - Answers -
muscles, organs, tendons, certain pathologies (pneumonia, tumors)
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