The pulmonary valve or pulmonic valve (PV) is one of the four cardiac valves.It is the semilunar valve that allows blood to exit the right ventricle (RV).It opens during systole and closes during diastole. The valve has anterior, left and right cusps, the bases of which attach around the valve orifice to a fibrous ring or annulus, forming part of the fibrous skeleton of the heart. The pulmonary valve is a vital component of the cardiovascular system, serving as a thin tricuspid structure. This valve prevents backward flow into the right ventricle after propelling blood into the low-pressure pulmonary circulation.[1] Pulmonary regurgitation occurs when blood flows from the pulmonary artery back into the right ventricle during diastole. Physiologic pulmonary regurgitation |ckk| fpu| czd| lov| nnh| dtv| zwb| cfl| bxb| rgm| gpb| keu| hdl| hgd| eou| tfw| wut| mic| uvv| atb| tkn| vqw| pzr| bqk| afz| uvg| mpn| ogm| yyl| wpc| jwo| mvz| vge| kyf| gzg| eya| vkh| cqq| kml| nwe| lqe| bmx| ssx| lcb| yir| tag| xku| eao| lce| uds|