What Makes - The Lub Dub Sound

Here’s a social media post (Instagram, Twitter, Facebook) explaining the “lub-dub” sound:

Ever wondered what makes that classic ❤️ lub-dub ❤️ sound when you listen to a heartbeat? what makes the lub dub sound

The "lub" is typically lower-pitched and lasts slightly longer than the second sound. It signals that the ventricles are ready to eject blood into the lungs and the rest of the body. The Second Sound: The "Dub" (S2) Here’s a social media post (Instagram, Twitter, Facebook)

The first part of the heartbeat, known medically as S1, is the "lub." This sound marks the beginning of systole, which is the phase where the heart contracts to pump blood out to the body. The Second Sound: The "Dub" (S2) The first

The human heart is one of the hardest-working organs in the body, beating approximately 100,000 times a day. For most of us, the sound of our own heartbeat is a background rhythm we rarely notice unless we are running or frightened. When a doctor places a stethoscope against a chest, they are listening for a specific, rhythmic pattern: the familiar "lub-dub."

Gallops: Sometimes, extra sounds (S3 or S4) appear, creating a rhythm that sounds like a galloping horse. This can be a sign of heart failure or stiffening of the heart muscle.