Pulmonary Valve

The pulmonary valve (sometimes referred to as the pulmonic valve) is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. 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. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.

The closure of the pulmonary valve contributes the P2 component of the second heart sound (S2). The right heart is a low-pressure system, so the P2 component of the second heart sound is usually softer than the A2 component of the second heart sound. However, it is physiologically normal in some young people to hear both components separated during inhalation.

Read more about Pulmonary Valve:  Additional Images

Other articles related to "valve, pulmonary valve, pulmonary, valves, pulmonary valves":

ICD-10 Chapter IX: Diseases Of The Circulatory System - I00–I99 – Diseases of The Circulatory System - (I30–I52) Other Forms of Heart Disease - Endocardium (including Heart Valves)
... I33) Acute and subacute endocarditis (I34) Nonrheumatic mitral valve disorders (I34.0) Mitral (valve) insufficiency Mitral regurgitation (I34.1) Mitral (valve) prolapse (I34.2) Nonrheumatic mitral (valve ...
Split S2 - Physiologic Split - Analysis of Pressure
... The pressure in the right ventricle tries to open the pulmonary valve ... The pressure in the pulmonary artery tries to close the pulmonary valve ... Hence, the closure of the pulmonary valve (P2) will be delayed since the pressure in the right ventricle is increased in inspiration, opposing the pressure in the pulmonary artery and keeping it open longer than in ...
Pulmonary Atresia
... Pulmonary atresia is a congenital malformation of the pulmonary valve in which the valve orifice fails to develop ... The valve is completely closed thereby obstructing the outflow of blood from the heart to the lungs ... The pulmonary valve is located on the right side of the heart between the right ventricle and pulmonary artery ...
Congenital Heart Defect - Treatment
... The Melody Transcatheter Pulmonary Valve (TPV), approved in Europe in 2006 and in the U.S ... Transcatheter pulmonary valve technology provides a less-invasive means to extend the life of a failed RVOT conduit and is designed to allow physicians to deliver a ...
Pulmonary Valve - Additional Images
... Heart valves are labeled with "B", "T", "A", and "P" Pulmonary valves Pulmonary valves ...