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What transducer component reduces reflection at the transducer/skin interface?

Describe competition and the principle of competitive exclusion; please be specific in your description.  In addition, contrast intraspecific and interspecific competition using named examples.

What color represents flow at 90 degrees to the sound beam? Physics color map(1).png

While performing a sonogram, to minimize risk to the fetus, which imaging mode trade-off would most be applicable?

You are performing a carotid exam with the following parameter: 5 MHz frequency, 6kHz PRF, 4cm depth, and 1.5 mm sample volume length.  What is the aliasing frequency?

For a single transducer to offer multiple frequency selections for scanning it must have:

Which control would you adjust to alter the dynamic range of the displayed echoes?

What system control can you adjust to compensate for the effort of sound attenuation in the body?

You notice that the image in the far field is less bright compared to the near field.  This is due to:

If you increase PRF to a level too great for the depth of field, the result will be: