Your heart beat of course.
Apex
The valves opening and closing
When the doctor listens to the lungs through a stethoscope (ausculation), diminished or bronchial breath sounds may be heard. By tapping on the chest (percussion) while listening through the stethoscope, the doctor can often tell if the lung is collapsed
Korotkoff sounds are the sounds heard through a stethoscope during the measurement of blood pressure. They are created by the turbulent flow of blood through the constricted artery when the cuff is gradually deflated. These sounds are used to determine systolic and diastolic blood pressure readings.
The sounds of the Heart, lungs, circulatory and gastrointestinal systems are heard using the amplified stethoscope. It makes it easier for a medical professional to hear the sounds that are produced by these systems in the body.
The sound is caused by the closing of valves in the heart.
systolic
Pneumonia is the typical condition that causes rales. Rales sound a little like Rice Krispies when heard through the stethoscope.
Yes, wheezing can be heard with the naked ear through auscultation, which involves using a stethoscope to listen to sounds within the body. Wheezing is a high-pitched whistling sound typically heard when there is narrowing or blockage in the airways, such as in conditions like asthma or COPD.
These sounds are called bruit and are listened to using a stethoscope. Bruit indicates partial arterial obstruction.
Barlow Syndrome
The function of the tubing in a stethoscope is to magnify the sound waves by making them narrow enough to be heard at an accurate timing through the ear canal.