Which type of procedure uses pulses of inaudible, ultra-high-frequency sound waves to create images of the internal structures of the body?
A) sonography
B) x-ray
C) CT scan
D) MRI
A
Explanation: A) Correct! Another name for sonography is ultrasonography. Son/o- means "sound."
B) An x-ray does not use sound waves.
C) A CT scan does not use sound waves.
D) An MRI does not use sound waves.
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