THE HEART TWO PUMPS BEAT AS ONE….

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Presentation transcript:

THE HEART TWO PUMPS BEAT AS ONE…

* AV valves forced shut; QRS complex; semilunar valves closed * Ventricles relaxed; AV and semilunar valves closed; AV valves open, ventricular filling occurs P wave of ECG; atrial contraction forces remaining blood into ventricles * AV valves forced shut; QRS complex; semilunar valves closed * Ventricles contract; semilunar valves open; blood forced out of ventricles *Ventricles relax; blood in aorta and pulmonary trunk flow backward; semilunar valves close

Auscultation of thorax: 2 major sounds 1. Lub = blood turbulence of AV valves closing (R/S) 2. Dup = semilunar valves closing (after T)