Ventricular Septal Defect Mixing blood from left(oxygenated) and right(deoxygenated) ventricles Hole in interventricular septum Ventricular septal defect Can be in different location along the septum blood flow from left ventricle through hole to right venricle Right ventricle Increased right ventricle work Pulmonary artery oad Left Increase pulmonary pressure ventricle pulmonary hypertension Alternate location of Require surgical intervention ventricular septa defect
Ventricular Septal Defect • Hole in interventricular septum • Can be in different location along the septum • Blood flow from left ventricle through hole to right venricle • Increased right ventricle work load • Increase pulmonary pressure, pulmonary hypertension • Require surgical intervention
Right ventricle右心室 Wa‖! much thicker than Aorta Pulmonary trunk atrium The three cusps of the pulmonary valve Separated from atrium by Superior vena cava Conus arteriosus tricuspid valve interventricular septum With anterior, posterior and septal cusps Trabeculae carneae p Papillary muscle for the attachment of heart val tendons chordae Anterior cusp tendineae腱索 Septal cusp Chordae tendineae Moderator band节制带 Pumps blood into Posterior cusp pulmonary trunk of tricuspid valve Guarded by semilunar Papillary muscle Moderator band valves半月瓣
Right ventricle 右心室 • Wall much thicker than atrium • Separated from atrium by tricuspid valve • With anterior, posterior and septal cusps • Papillary muscle for the attachment of heart valve tendons, chordae tendineae 腱索 • Moderator band 节制带 • Pumps blood into pulmonary trunk • Guarded by semilunar valves 半月瓣 Anterior cusp Septal cusp Posterior cusp of tricuspid valve Papillary muscle Chordae tendinease Moderator band