Which valve is located between the left atrium and left ventricle?

Which valve is located between the left atrium and left ventricle?

• A. Aortic valve
• B. Pulmonary valve
• C. Mitral valve
• D. Tricuspid valve

Answer: (C)

The mitral valve sits between the left atrium and left ventricle. It’s one of the atrioventricular valves that regulates blood flow from the atrium into the ventricle on the left side of the heart. When the atrium fills with oxygenated blood from the lungs, the mitral valve opens to let blood move into the left ventricle. Then, as the ventricle contracts to push blood into the aorta, the mitral valve closes to prevent backflow into the atrium, with support from the chordae tendineae and papillary muscles. The aortic valve is between the left ventricle and the aorta, the pulmonary valve is between the right ventricle and the pulmonary artery, and the tricuspid valve is between the right atrium and right ventricle.

The mitral valve sits between the left atrium and left ventricle. It’s one of the atrioventricular valves that regulates blood flow from the atrium into the ventricle on the left side of the heart. When the atrium fills with oxygenated blood from the lungs, the mitral valve opens to let blood move into the left ventricle. Then, as the ventricle contracts to push blood into the aorta, the mitral valve closes to prevent backflow into the atrium, with support from the chordae tendineae and papillary muscles. The aortic valve is between the left ventricle and the aorta, the pulmonary valve is between the right ventricle and the pulmonary artery, and the tricuspid valve is between the right atrium and right ventricle.