GENERAL ANATOMY
ANATOMY OF THE HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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opens in ventricular systole, when the pressure in the right ventricle rises above
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closes off the lower left chamber that holds the oxygen-rich blood before it is pumped out to the body.
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closes the artery in the lower right chamber in order to send oxygen to other parts of the body
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opens the artery in order to prevent blood from entering the lungs
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Detailed explanation-1: -The aortic valve is one of four valves that control blood flow through the heart. It separates the heart’s main pumping chamber (left ventricle) and the main artery that supplies oxygen-rich blood to your body (aorta). The valve has flaps (cusps or leaflets) that open and close once during each heartbeat.
Detailed explanation-2: -Your mitral valve opens to send blood from your left atrium to your left ventricle. When your left ventricle is full it squeezes, which closes your mitral valve and opens your aortic valve. Your heart sends blood through your aortic valve to your aorta, where it flows to the rest of your body.
Detailed explanation-3: -When the left ventricle relaxes, the aortic valve closes and the mitral valve opens. This lets blood flow from the left atrium into the left ventricle. The left atrium contracts. This lets even more blood to flow into the left ventricle.
Detailed explanation-4: -The left ventricle (LV) pumps the oxygen-rich blood through the aortic valve (AoV) into the aorta (Ao), the main artery that takes oxygen-rich blood out to the rest of the body.
Detailed explanation-5: -The aortic valve is generally understood as a simple trileaflet structure that passively opens and closes according to pressure changes between the LV and aorta. This concept has led to the development of all mechanical and stented bioprostheses.