Korotkoff sounds

I dig medical information.I love them like I love pizza(ha ha ha..)!I was watching television sometime back and was endlessly channel-browsing when I came across a quiz programme.The question was 'What are Korotkoff sounds?" It was all Greek and Latin to me,and I was none the wiser about the answer(I actually thought it might be sounds made by insects and went on to ad lib that it was the sound made by crickets on rubbing their legs,when calling for their mates for you-know-what).
The answer happened to be this:when doctors take your blood pressure they place a stethescope on the cuff and listen.They are actually looking for sounds called Korotkoff sounds.

From Wikipedia:"

When the cuff of a sphygmomanometer is placed around a patient's upper arm and inflated to a pressure above the patient's systolic blood pressure, there will similarly be no sound audible. This is because the pressure in the cuff is high enough such that it completely occludes the blood flow. It is similar to a flexible tube or pipe with fluid in it that is being pinched shut.

If the pressure is dropped to a level equal to that of the patient's systolic blood pressure, the first Korotkoff sound will be heard. As the pressure in the cuff is the same as the pressure produced by the heart, some blood will be able to pass through the upper arm when the pressure in the artery rises during systole. This blood flows in spurts as the pressure in the artery rises above the pressure in the cuff and then drops back down, resulting in turbulence that results in audible sound.

As the pressure in the cuff is allowed to fall further, thumping sounds continue to be heard as long as the pressure in the cuff is between the systolic and diastolic pressures, as the arterial pressure keeps on rising above and dropping back below the pressure in the cuff.

Eventually, as the pressure in the cuff drops further, the sounds change in quality, then become muted, then disappear altogether. As the pressure in the cuff drops below the diastolic blood pressure, the cuff no longer provides any restriction to blood flow allowing the blood flow to become smooth again with no turbulence and thus produce no further audible sound."