Modern<unk>  The<unk>  is an acoustic medical device for auscultation, or listening to internal sounds of an animal or human body. It typically has a small disc-shaped resonator that is placed against the skin, and one or two tubes connected to two earpieces. A<unk>  can be used to listen to the sounds made by the heart, lungs or intestines, as well as blood flow in arteries and veins. In combination with a manual sphygmomanometer, it is commonly used when measuring blood pressure. Less commonly, "mechanic's<unk> s", equipped with rod shaped chestpieces, are used to listen to internal sounds made by machines (for example, sounds and vibrations emitted by worn ball bearings), such as diagnosing a malfunctioning automobile engine by listening to the sounds of its internal parts.<unk> s can also be used to check scientific vacuum chambers for leaks and for various other small-scale acoustic monitoring tasks. A<unk>  that intensifies auscultatory sounds is called a phonendoscope. A girl having her heart listened to with a<unk> .
Stethoscope
Stroboscope
Endoscope
Videoscope
Fetoscope
Scope 
SurgiScope
Otoscope