ANATOMY

Detailed explanation-1: -The semilunar valves act to prevent backflow of blood from the arteries to the ventricles during ventricular diastole and help maintain pressure on the major arteries. The aortic semilunar valve separates the left ventricle from the opening of the aorta.

Detailed explanation-2: -The semilunar valves prevent backflow into the ventricles from the aorta and pulmonary arteries. The aortic valve prevents flow from the aorta to the left ventricle and the pulmonary valve prevents flow from the pulmonary artery to the right ventricle.

Detailed explanation-3: -Aortic valve: Allows blood to pass from the left ventricle to the aorta; prevents backflow of blood into the left ventricle.

Detailed explanation-4: -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-5: -The aortic valve is one of four heart valves and is the final one encountered by oxygenated blood as it leaves the heart. It is also called aortic semilunar due to its semilunar shape. It is between the left ventricle and the aorta to ensure that oxygen-rich blood does not flow back into the left ventricle.