Lub-dub Sounds ~repack~ <480p 2027>

That longer rest is crucial. It’s the moment when the heart fills up with blood again, preparing for the next "lub." Sometimes, a doctor doesn't hear a clean "lub-dub." Instead, they hear a "lub- shhh -dub" or a "lub-dub- whoosh ." This is called a heart murmur .

A slightly lower-pitched, longer "lub."

"The squeeze is over. We are locking the exit doors to keep blood moving forward." The Silence in Between Have you noticed the pause between the "lub" and the "dub"? That silence is the systolic pause (the squeeze). The longer pause after the "dub" is the diastolic pause (the rest/fill). lub-dub sounds