Ques. The heart sound ‘dup’ is produced when
A. mitral valve is closed
B. semi-lunar valves at the base of aorta get closed
C. tricuspid valve is opened
D. mitral valve is opened.
Answer:B
Ques. The heart sound ‘dup’ is produced when
A. mitral valve is closed B. semi-lunar valves at the base of aorta get closed C. tricuspid valve is opened D. mitral valve is opened.