If the valves don’t close properly or are stiff, the laminar (smooth) flow of blood becomes turbulent. That turbulence creates a heart murmur .
The human heart is often compared to a tirelessly working pump, but it is perhaps better described as a rhythmic percussion instrument. Every minute of every day, it produces a signature "lub-dub" sound that clinicians use as a primary indicator of cardiovascular health. lub-dub sound of heart is caused by
Valves closing silently would be ideal for efficiency, but the human body is a fluid system. When flaps of tissue snap shut, they vibrate. That vibration travels through the blood and chest wall, becoming the sound we hear. If the valves don’t close properly or are
If a valve is stiff or narrowed, the heart has to work harder to force blood through, creating turbulent sound. Summary of the Cardiac Cycle Atria fill with blood. Every minute of every day, it produces a
The first sound, “lub,” marks the beginning of —the phase where the heart squeezes blood out to the body.