Table of Contents
Introduction of Semilunar Valve
The semilunar valves are two valves in the heart that prevent blood from flowing back into the veins and lungs. The semilunar valves are located between the atria and the ventricles, and between the ventricles and the pulmonary arteries and aorta.
The Valves of the Heart
There are four valves in the heart: the mitral valve, the tricuspid valve, the pulmonary valve, and the aortic valve.
- The mitral valve is between the left atrium and the left ventricle.
- The tricuspid valve is between the right atrium and the right ventricle.
- The pulmonary valve is between the right ventricle and the pulmonary artery.
- The aortic valve is between the left ventricle and the aorta.
- The valves open and close to control the flow of blood through the heart.
Semilunar Valves of the Heart
The semilunar valves are a pair of valves in the heart that allow blood to flow from the ventricles to the aorta and pulmonary trunk. The valves so named because they crescent-shaped. The semilunar valves composed of two leaflets, one for each side of the valve. The leaflets attached to the cusps of the valve, which are in turn attached to the wall of the ventricle. The semilunar valves are opened and closed by the action of the papillary muscles.
Semilunar Valves Location
The semilunar valves are located at the base of the aorta and the pulmonary trunk. They two crescent-shaped flaps of tissue that open and close to regulate the flow of blood through the heart.
Semilunar Valves Function
The semilunar valves are located between the atria and ventricles of the heart. They are responsible for controlling the flow of blood between these chambers. The valves named for their crescent shape, and they open and close to allow blood to flow in one direction only.
