Detailed dissection of heart

Mitral valve viewed through left atrium

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Image #122-2

Detailed dissection of heart

Mitral valve viewed through left atrium

The specimen shown in the previous view has been turned so that the view is directed downward through the ostium of the mitral valve (1).

1. Left atrioventricular opening
2. Left pulmonary veins (upper vein obscured)
3. Fat in posterior part of coronary sulcus
4. Reflected flap of posterior atrial wall
5. Right pulmonary veins
6. Inferior vena cava (at point of entrance into right atrium)
7. Line of reflection of serous pericardium
8. Anterior cusp of mitral valve
9. Fat in coronary sulcus overlying coronary sinus
10. Posterior cusp of mitral valve