ANATOMY

Detailed explanation-1: -They open to let blood flow from your heart’s left ventricle to the aorta. The aorta is the largest blood vessel in your body. It brings oxygenated blood from your heart to the rest of your body. The aortic valve prevents backward flow from the aorta into the left ventricle.

Detailed explanation-2: -Aortic valve. Located between the left ventricle and the aorta.

Detailed explanation-3: -The aortic valve opens the way for oxygen-rich blood to pass from the left ventricle into the aorta, your body’s largest artery.

Detailed explanation-4: -In the lungs, the blood receives oxygen then leaves through the pulmonary veins. It returns to the heart and enters the left atrium. From there, blood is forced through the mitral valve into the left ventricle.