Question

Resonance from percussion is expected to be found:

a) Over the stomach
b) Over normal lung tissue
c) Over the liver
d) Over the bladder

Answer 1

Resonance from percussion is expected to be found over normal lung tissue (b). In our bodies, the chest cavity is a clear example of a system at resonance. The diaphragm and chest wall drive the oscillations of the chest cavity which result in the lungs inflating and deflating. The system is critically damped and the muscular diaphragm oscillates at the resonant value for the system, making it highly efficient.

Step-by-step explanation:

Resonance from percussion is expected to be found over normal lung tissue (b). In our bodies, the chest cavity is a clear example of a system at resonance. The diaphragm and chest wall drive the oscillations of the chest cavity which result in the lungs inflating and deflating. The system is critically damped and the muscular diaphragm oscillates at the resonant value for the system, making it highly efficient.