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| 1. |
First heart sound is associated with the closure of _______ valves whereas second heart sound is associated with the closure of _____valves.A. (1) semilunar , atrioventricularB. (2) atrioventricular, semilunarC. (3) bicuspid, tricuspidD. (4) tricuspid, bicuspid |
| Answer» Correct Answer - B | |