AAAI ISMA Primary Aerobic And Group Fitness Instructor Certification Practice Test

Which valve connects the left atrium to the left ventricle?

Aortic valve Tricuspid valve Bicuspid (Mitral) valve Pulmonary valve

Correct Answer:

Bicuspid (Mitral) valve

Explanation:

The mitral valve, also called the bicuspid valve, is the valve that connects the left atrium to the left ventricle. It sits between the left-sided chambers and is one of the atrioventricular valves. It opens to let blood flow from the left atrium into the left ventricle when the atrium contracts, and it closes during the ventricle’s contraction to prevent blood from flowing backward into the atrium. The other valves have different connections: the aortic valve sits between the left ventricle and the aorta, the pulmonary valve sits between the right ventricle and the pulmonary artery, and the tricuspid valve sits between the right atrium and the right ventricle.

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