He told her a story. He said that deep inside every person, there was a small, tireless drummer. The drummer had two hands. One hand said lub —that was the sound of the heart’s big doors swinging shut, pushing blood out to run errands all over the body, bringing oxygen to toes and fingers and the very top of the head. The other hand said dub —that was the sound of the heart taking a quick breath, refilling, getting ready to send the blood out again.
“That,” said Grandfather, “is the sound of being alive.”
As the heart beats, the following sequence of events occurs: lub dub sounds of the heart
The pause between the "lub-dub" and the next "lub-dub" is just as important as the sounds themselves.
This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more He told her a story
Lub-dub. You are here. Lub-dub. You are loved. Lub-dub. Rest now.
Sometimes, a doctor might hear more than just the standard two sounds. Using a stethoscope, they listen for "extra" noises that might indicate a change in heart function: One hand said lub —that was the sound
Lub-dub. Lub-dub.
In medical terms, these sounds are referred to as the , or S1 and S2 . Contrary to popular belief, the sound isn't caused by the heart muscle contracting. Instead, the "lub" and the "dub" are created by the closing of the heart valves.
“The sound,” she said. “That lub-dub thing. It won’t let me sleep.”