The degree of percussion tone is determined by the density of the medium through which the sound waves travel. Which statement is true regarding the relationship between density of the medium and percussion tone?
A)The more dense the medium, the louder the percussion tone.
B)The less dense the medium, the louder the percussion tone.
C)The more hollow the area percussed, the quieter the percussion tone.
D)Percussion over bony areas produces the loudest percussion tones.
E)Percussion tones are produced by the structure immediately beneath the skin.

Question

Quizplus · Accepted Answer

Percussion sounds vary according to the tissue being percussed. Whereas less dense tissue (e.g., over a normal lung) produces a loud tone, more dense tissue (e.g., a muscle) produces a softer tone. Percussion tones arise from vibrations 4 to 6 cm deep in the body tissue.

The Degree of Percussion Tone Is Determined by the Density