Lub-dub Sound Of Heart [portable]

To prevent the blood that was just pumped out from falling back into the heart, the Aortic and Pulmonary valves (the "exit doors") slam shut. This vibration creates the distinct "dub." Why the Rhythm Matters

If a valve doesn’t close tightly (regurgitation) or if it’s too narrow to open fully (stenosis), blood becomes turbulent. Instead of a clean lub-dub , a doctor might hear a lub-whoosh-dub . Most murmurs are "innocent" (harmless), but some can signal valve disease. Gallops: The S3 and S4 lub-dub sound of heart

Only a doctor can interpret what extra sounds mean, so never self-diagnose by ear. To prevent the blood that was just pumped

This sound marks the beginning of —the phase where the heart contracts to pump blood out to the body. lub-dub sound of heart