What instrument is used to listen to heart sounds?
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Stethoscope
Invented in 1816 by René Laennec, the stethoscope allows doctors to hear the 'lub-dub' sounds of heart valves closing. It can also be used to listen to the movement of air in the lungs and blood flow in the arteries.
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- Which medical device is primarily used by doctors to auscultate the heart and lungs?