What is created in regards to fremitus with normal vibrating breast tissue ?

What is created in regards to fremitus with normal vibrating breast tissue ?

• A. Creates motion, which produces a signal.
• B. Causes damping.
• C. Eliminates all signals.
• D. Causes resonance but no signal.

Answer: (A)

When breast tissue is vibrated, normal tissue actually moves. That movement is what generates the detectable signal at the surface, which is what fremitus uses. So the key idea is that the vibration creates motion, and that motion produces the signal you observe. If there were damping, the signal would be reduced; eliminating all signals would imply something abnormal or poor coupling; and resonance without a signal isn’t the typical description for normal vibrating tissue because there is still a signal produced by the movement.

When breast tissue is vibrated, normal tissue actually moves. That movement is what generates the detectable signal at the surface, which is what fremitus uses. So the key idea is that the vibration creates motion, and that motion produces the signal you observe. If there were damping, the signal would be reduced; eliminating all signals would imply something abnormal or poor coupling; and resonance without a signal isn’t the typical description for normal vibrating tissue because there is still a signal produced by the movement.