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Other Terms: Right ventricle of heart, Ventriculus dexter, Ventriculus cordis dexter, Ventricule droit, Rechter Ventrikel, Ventrículo derecho
The right ventricle is triangular. Its anterior surface is convex and its diaphragmatic surface is flat. It is conical above toward the origin of the pulmonary artery. This portion is called the conus arteriosus. The medial wall of the right ventricle is formed by the ventricular septum, which bulges into it. Its wall is thickest at the base and thinnest near the apex. The cavity of the right ventricle is crescentic on cross-section. Its most noticeable features are its trabeculae carneae, or fleshy columns. There are three sets. One set forms ridges along the ventricular septum, to which they are attached throughout their entire length. Another set is similarly arranged along the walls, but free in the middle and attached only at the ends. Three or four columns that are thicker than the others are attached to the ventricular walls by one end and the other end is round and attached to the chordae tendineae of the mitral valve. These are called the papillary muscles.
Ventriculus cordis dexter