A stethoscope is a medical instrument used to listen to sounds produced in the body, especially those that emanate from the heart and lungs. The stethoscope is used mainly for the detection of heart...

A stethoscope is a medical instrument used to listen to sounds produced in the body, especially those that emanate from the heart and lungs. The stethoscope is used mainly for the detection of heart murmurs, irregular heart rhythms, or abnormal heart sounds. It is also used to listen to the sound of air moving through the lungs in order to detect abnormalities in the air tubes and sacs found in the lung walls..