MICROANATOMY

Detailed explanation-1: -Overview. 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-2: -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.

Detailed explanation-3: -The aortic and pulmonary valves, are located between the ventricles and the arteries that emerge from the heart. These valves are also known as the semilunar valves.

Detailed explanation-4: -They, together with atrioventricular valves form the heart valves in humans. There are two types of semilunar valves: (1) the aortic valves and (2) the pulmonary valve.