What is the aortic valve's location?

What is the aortic valve's location?

• A. Between the left ventricle and aorta
• B. Between the right ventricle and pulmonary trunk
• C. Between the left atrium and left ventricle
• D. Between the right atrium and right ventricle

Answer: (A)

The aortic valve is located at the boundary where the left ventricle pumps blood into the aorta—between the left ventricle and the aorta. It’s the semilunar valve that opens during the heart’s systole to allow blood to flow into the systemic circulation, and then closes during diastole to prevent blood from flowing back into the ventricle. This placement distinguishes it from other valves: the pulmonary valve sits between the right ventricle and the pulmonary trunk; the mitral valve sits between the left atrium and left ventricle; the tricuspid valve sits between the right atrium and right ventricle.

The aortic valve is located at the boundary where the left ventricle pumps blood into the aorta—between the left ventricle and the aorta. It’s the semilunar valve that opens during the heart’s systole to allow blood to flow into the systemic circulation, and then closes during diastole to prevent blood from flowing back into the ventricle. This placement distinguishes it from other valves: the pulmonary valve sits between the right ventricle and the pulmonary trunk; the mitral valve sits between the left atrium and left ventricle; the tricuspid valve sits between the right atrium and right ventricle.