Question

Very Short answer.
Name the doctor who invented the stethoscope?

Answer 1

A stethoscope is used to detect and study heart, lung, stomach and other sounds in adults, human fetuses and animals. Using a stethoscope, listeners can detect regular and irregular infections, cardiac, pleural, arterial, venous, uterine, fetal, and intestinal sounds.

Complete answer: A stethoscope is a medical instrument used to listen to sounds produced within the body, usually by the heart or lungs. It was invented by a French physician named R.T.H. Laënnec, who described the use of a perforated wooden cylinder that transmits sounds from the patient's chest to the physician's ear. This monaural stethoscope was updated to be more easily shaped but it was largely replaced by a binaural form with two flexible rubber tubes, which are attached to the chest piece to the spring-connected metal tubes with earpieces. In particular, when listening to heart sounds, it is important to use both the bell-shaped, open-ended chest piece that transmits well low-pitched sounds and a flat chest piece with a semi-rigid disc (a form of the diaphragm) that detects higher-frequency sounds. Instruments of both types of chest component are arranged in such a way that they can be easily interchanged by turning a valve. The nature and material of the stethoscopes vary. Most of them are made of Y-shaped rubber tubes. This shape makes it possible for sounds to reach the system at one end, to move up the tubes and through the ear parts. Many stethoscopes have a two-sided sound detection system or head that listeners can reverse, depending on whether they need to hear high or low frequencies. Some of the newer models have only one pressure-sensitive head.

Note: Rene Laennec first used a moving paper as a stethoscope. He put one rolled paper on the chest of the patient and another end close to his ear. He was amazed to realize that the sound was so clear. From that point, he went on after it for three years and made a wooden stethoscope.