The opening between the left atrium and left ventricle is guarded by …………….
A. Semilunar valves
B. Mitral valve
C. Tricuspid valve
D. Flaps
Answer:B
The opening between the left atrium and left ventricle is guarded by …………….
A. Semilunar valves B. Mitral valve C. Tricuspid valve D. Flaps