- Right border of heart
Right border of heart Sternocostal surface of heart. (Right margin visible but not labeled.) Latin margo dexter cordis Gray's subject #138 528
- The atrial portion is rounded and almost vertical; it is situated behind the third, fourth, and fifth right costal cartilages about 1.25 cm. from the margin of the sternum.
- The ventricular portion, thin and sharp, is named the acute margin; it is nearly horizontal, and extends from the sternal end of the sixth right coastal cartilage to the apex of the heart.
Anatomy of torso, cardiovascular system: heart (TA A12.1, TH H3.09.01, GA 5.524) GeneralSurfaceInternal Chambers(venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve of inferior vena cava, valve of coronary sinus) → tricuspid valve → right ventricle (conus arteriosus, moderator band/septomarginal trabecula) → pulmonary valve → (pulmonary artery and pulmonary circulation) Layers
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