Sunday, February 15, 2009

Pulmonary Valve

The pulmonary valve, is a three-cusp valve which lies between the right ventricle and the pulmonary artery of the heart. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery.

The pulmonary valve prevents the back flow of blood as it is pumped from the right ventricle to the pulmonary artery.