The Right Ventricle of the Heart

Description

Opened to reveal its internal chamber, the right ventricle occupies the anterior aspect of the heart, inferior to the right atrium and medial to the right lung. Trabeculae carneae line the ventricular wall, while papillary muscles project into the cavity and anchor chordae tendineae to the tricuspid valve leaflets at the atrioventricular junction. Superiorly, the smooth right ventricular outflow tract (infundibulum) leads to the pulmonary valve and pulmonary trunk, positioned anterior to the aortic root. Coronary vessels course over the epicardial surface, and the myocardium is framed by the adjacent rib cage. This right-sided chamber matters because it is the low-pressure pump that drives pulmonary circulation, and small changes in afterload can produce marked right ventricular dilation and failure in acute pulmonary embolism or pulmonary hypertension. For procedural planning, the relationships between the tricuspid valve apparatus, the interventricular septum, and the right ventricular outflow tract guide catheter paths during right-heart catheterization, electrophysiology studies, and placement of pacing leads, which often traverse the tricuspid valve to the right ventricular apex or septum. Septal anatomy is also a teaching anchor for ventricular septal defects, where shunt direction and hemodynamics depend on right ventricular pressure. Cardiology and anatomy faculty can use this artwork in lectures on cardiac chambers, valve mechanics, and coronary circulation, pairing it with hemodynamic waveforms to connect form to function. It also fits well in patient-facing materials explaining right-sided heart failure, congenital lesions affecting the right ventricle, and pulmonary valve or RVOT interventions. Anatomical accuracy verified by SciePro's Medical Advisory Board.