TEST 2 CARDIAC CONDITIONS - Weebly

S1 = 1st heart sound = closure of the mitral (left) and tricuspid (right) valve (AV or atrioventricular valves) S2 = 2nd heart sound = closure of the semilunar valves (aortic & pulmonic) S1 & S2 characteristics & changes. Increase vs decrease intensity. S1 & S2, how does one sound compare to the other in volume & length. Extra Discrete HS ................
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