This normal heartbeat sound consists of an S1 and an S2 and is heard throughout the precordium without. without any rubs, gallops or murmurs.

In healthy adults, there are two normal heart sounds, often described as a lub and a dub that occur in sequence with each heartbeat. These are the first heart sound (S 1) and second heart sound (S 2), …

There are two normal heart sounds: S1 and S2. S1 is caused by the closing of atrioventricular valves at the beginning of systole; whereas S2 is caused by the closing of aortic and pulmonary valves closing …

Feb 13, 2025 · Heart sounds are one tool providers use to assess heart health. Learn about systolic, diastolic, and S1 to S4 heart sounds in this article.

Learn normal heart sounds and pathological heart murmurs directly through a streaming playlist of heart sounds

Nov 9, 2021 · This normal heart sounds module includes seven lessons covering essential normal heart sounds. We provide a textual description, audio recording, dynamic waveform video, and a cardiac …

Dec 10, 2025 · The heart sound is not generated by the muscle contracting, but by the sudden closure of its four valves as blood is pushed through the chambers. This snapping shut creates vibrations in …