AAA Driver Improvement Practice Exam

Which valve prevents the backflow of blood from the left ventricle into the left atrium during ventricular systole?

Tricuspid valve Aortic semilunar valve Mitral (bicuspid) valve Pulmonary semilunar valve

Mitral (bicuspid) valve

The mitral, or bicuspid, valve is located between the left atrium and left ventricle and closes during systole to prevent backflow.

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