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The change in direction of the sound beam after passing through tissue interfaces with propagation speed differences is known as:

The diameter of the active element in an imaging transducer is decreased.  What effect will this have on the resonant frequency emitted by transducer?

A form of organized scattering that occurs when the structure’s dimensions are significantly smaller than the beam’s wavelength is called__________.

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As the amount of reflection decreases, the amount of ultrasound transmission will:

Of the following, which are the prerequisities to produce a refraction of the sound beam from a tissue interface?

What is the location of the parathyroid glands?

Which of the following glands can be palpated as part of the extraoral exam?

Into which of the following categories is the omohyoid muscle placed?