A) diastole begins
B) semilunar valve close quickly
C) interventricular pressure decreases
D) bicuspid and tricuspid valve close quickly
Correct Answer: D
Solution :
During working of heart two sounds are produced lub and dub. First sound (i.e., lub) is produced when auriculoventricular (tricuspid and bicuspid) valves are closed or at the end of diastole. The second sound {i.e., dub) is produced when semilunar valves at the base of dorsal aorta are closed or at the end of systole.
You need to login to perform this action.
You will be redirected in
3 sec
