human
I'm a bit confused about the difference between a stethoscope and an otoscope.
assistant
An otoscope is used to examine the ear, while a stethoscope is used to listen to the heart and lungs. A stethoscope has a bell that is placed on the chest of the patient, and a diaphragm that is placed on the back of the patient's hand or neck. The doctor then listens for any sounds coming from the chest and can diagnose any problems with the heart and lungs.