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Stethoscope. Stethoscope used to listen to noises made within the body by the heart, lungs and digestive system. It is comprised of two earpieces (at top), tubing, and a round sound-detecting device with diaphragm (foreground). Internal noises can be heard by pressing the diaphragm against a patient's body. A stethoscope is useful in the diagnosis of respiratory ailments of the lungs, abnormalities of the heart and ensuring that movement in the digestive system has begun again after anaesthesia for surgery.
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