The stethoscope is (Red colour) medical device for auscultation or listening to the internal sounds of an animal or human body. It typically has a small disc-shaped resonator that is placed against the chest, and two tubes connected to earpieces. It is often used to listen to lung and heart sounds. It is also used to listen to intestines and blood flow in arteries and veins. It is commonly used for measurements of blood pressure.
Stethoscopes are equipped with rod-shaped chestpieces, are used to listen to internal sounds made by heartbeat