The finger you put on the surface to be percussed is the pleximeter finger. The finger you use to strike is the plexor. Physicians frequently percuss twice over each spot: first hard, then soft.

Percussion was used by Hippocrates and re-invented by Dr Leopold Auenbrugger in 1761, after he observed a wine merchant percussing out a barrel.

The physiological tones are: The pathological tones are: 24 October, 2000