1 — Coronary sinus; 2 — Mitral valve; Left atrioventricular valve; 3 — Posterior cusp; 4 — Anterior cusp; 5 — Left semilunar cusp; Left coronary cusp; 6 — Left coronary artery; 7 — Pulmonary valve; 8 — Anterior semilunar cusp; 9 — Right semilunar cusp; Right coronary cusp; 10 — Aortic valve; 11 — Posterior semilunar cusp; Noncoronary cusp; 12 — Right coronary artery; 13 — Tricuspid valve; Right atrioventricular
valve; 14 — Septal cusp