Leaving all that aside though, they are useful diagnostic and educational tools, used for the auscultation of the heart, respiratory and digestive systems, thyroid and elsewhere. They can be used to assess thyroid dysfunction, borborygmus, heart murmurs, other heart problems and diagnose a host of other health problems as well as auscultation of normal, physiological phenomena such as the mammary and placental souffle, sinus arrhythmia and splitting of the heart sounds.
Two views so far. I made this for two reasons. One was that the lung volumes video is quite popular (this one:
Tomorrow is of course our china wedding anniversary, so it'll be on marriage.