MICROANATOMY

Detailed explanation-1: -They are shaped like a half moon, hence the name semilunar (semi-, -lunar). The semilunar valves are located between the aorta and the left ventricle, and between the pulmonary artery and the right ventricle.

Detailed explanation-2: -Semilunar valves connect your heart ventricles (lower chambers) and arteries. Semilunar valves get their name from the crescent moon shape of the flaps that make up the valve.

Detailed explanation-3: -The normal human heart contains 4 valves that regulate blood flow into and out of the heart. The aortic and pulmonic valves are known as the semilunar valves, whereas the tricuspid and mitral valves are referred to as the atrioventricular valves.

Detailed explanation-4: -semilunar valve, either of two pocketlike half-moon-shaped structures located between the left ventricle and the aorta (aortic valve) and between the right ventricle and the pulmonary artery (pulmonary valve) of the heart.

Detailed explanation-5: -The aortic and pulmonary valves are semilunar or crescent-shaped. They prevent the backflow of blood into the ventricles. They allow the blood to follow into the arteries. When the pressure increases during ventricular contraction, the blood flows through these valves into the pulmonary trunk and aorta.