Stethoscopes are simple yet effective tools that allow doctors to listen to the internal sounds in a patient?s body. Doctors can use stethoscopes to listen to a patient?s heart, intestines, breathing, and blood flow.
A French doctor named Rene-Theophile-Hyacinthe Laennec invented the first stethoscope in 1816. Dr. Laennec used a hollow wooden tube to [...]