Select the correct statement about the heart valves.
A) The mitral valve separates the right atrium from the right ventricle.
B) The tricuspid valve divides the left atrium from the left ventricle.
C) Aortic and pulmonary valves control the flow of blood into the heart.
D) The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur.

Question

Quizplus · Accepted Answer

The AV (atrioventricular) valves, including the mitral and tricuspid valves, are supported by chordae tendineae to prevent backflow of blood into the atria during ventricular contraction. The aortic and pulmonary valves control blood flow out of the heart, not into it. Option A and B are incorrect because they state the opposite of the correct relationship between the valves and the chambers they separate.

Select the Correct Statement About the Heart Valves