Question

The stethoscope was discovered by
A. Antonie van Leeuwenhoek
B.Leopold Auenbrugger
C. Jean-Nicolas Corvisart
D. Rene Laennec

Answer 1

Hint: It is a long tube-like structure whose one end is joined with two earpieces and another end contains a disc-like structure called a diaphragm. It helps in the amplification of heart and lung sounds.

Complete Answer:
- The stethoscope is named after Greek words (stetho=chest) and (scope = explore) that means exploration of the chest. The stethoscope is a device used by medical people for auscultation or listening to the sound of heartbeats and lung movements of animals or humans. With the help of a stethoscope, doctors can make a clear diagnosis of diseases.

- A stethoscope is a small and portable device. It is a long tube-like structure whose one end is joined with two earpieces and another end contains a disc-like structure called the diaphragm. A stethoscope amplifies the sound of heartbeats, lungs, and also the movement of blood in arteries. The amplification of sound helps in making a more precise diagnosis.

- The stethoscope was invented in France by Rene Laennec in 1816. He made a wooden stethoscope. This wooden stethoscope was also used in the 19th century until rubber tubing was invented.

- Antonie van Leeuwenhoek the father of microbiology discovered the bacteria in rainwater. He was the first human to see bacteria under a microscope. He also discovered sperms.

- Leopold Auenbrugger discovered the technique of percussion (Tapping the chest lightly to check underlying tissues) which proved to be a very important technique for the precise diagnosis of disease in modern medicine.

- Jean-Nicolas Corvisart Perfected the percussion technique introduced by Auenbrugger. He discovered some important medical signs which are specific to various diseases thus helping in precise diagnosis of disease. Rene Laennec was a student of Jean-Nicolas Corvisart.

Note: Rene Laennec first used a rolled paper as a stethoscope. He placed one end of the rolled paper on the chest of the patient and another end near his ear. He was surprised to know that the sound was so clear. From there he tried for 3 years and finally, he made a wooden stethoscope.