Dub Heart Sound Jun 2026

The , known medically as the second heart sound (S2) , is the shorter, higher-pitched sound that completes the familiar "lub-dub" rhythm of a heartbeat. While the "lub" (S1) marks the start of ventricular contraction, the "dub" signifies the transition into diastole , the phase where the heart relaxes and refills with blood. The Mechanics of the "Dub" Sound

Located on the right side, it closes when the right ventricle finishes pumping blood toward the lungs. dub heart sound

The dub heart sound, also known as S2, is the second sound heard in the cardiac cycle. It is a softer and shorter sound compared to the first heart sound (S1), which is often referred to as the "lub" sound. The dub sound is produced by the closure of the aortic valve and the pulmonary valve, which are located between the heart and the blood vessels that carry blood away from the heart. The , known medically as the second heart

"Nurse," Thorne said, his voice low. "What's the current BP?" The dub heart sound, also known as S2,