Question:

What does the first heart sound represent? A. The closing of

Last updated: 7/25/2022

What does the first heart sound represent? A. The closing of

What does the first heart sound represent? A. The closing of the semilunar valves B. The contraction of the heart muscle C. The blood flowing though the atrioventricular valves D. The closing of the atrioventricular valves