: "Lub" is typically lower-pitched and longer, while "dub" is higher-pitched and shorter.
A murmur is a valve closing. It is the sound of turbulent blood flow .
But what exactly causes these two distinct sounds? Why doesn't the heart make just one sound? And what happens when "lub-dub" turns into something else, like a "whoosh" or a "click"? what is lub dub sound
People often ask: Why is it "lub-dub" and not "dub-lub"?
The pause between the "dub" and the next "lub" is typically longer than the pause between the "lub" and the "dub." This represents the time the heart takes to fill with blood. What if it sounds different? : "Lub" is typically lower-pitched and longer, while
Doctors listen to these sounds to diagnose heart health. If the sounds are muffled, too loud, or have extra noises, it can indicate a problem:
The "dub" is formally known as the .
This article explains the complete mechanics behind the lub-dub sound, from the anatomy of the valves to what doctors listen for in a heartbeat.