Doppler ultrasound observation of pathological heart valves
K Padmanabhan1, S Dhanasekaran, S Ananthi
1Central Instrumentation Research Department, University of Madras. ritsouth@vsnl.com
Abstract
No abstract available in PubMed .
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Heart Valves
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
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The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Heart Sounds
Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
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S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V) valves at the...
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