Bassett Collection Large Image - Lane Medical Library, Stanford University Medical Center

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Detailed dissection of heart

Tricuspid valve viewed through right atrium

The view is directed into the cavity of the right ventricle through the opened right atrium and the ostium (2) of the tricuspid valve.

1 .	Right auricle
2 .	Margins of right atrioventricular opening
3 .	Right pulmonary veins (cut across)
4 .	Pectinate muscles
5 .	Anterior cusp tricuspid valve
6 .	Septomarginal trabecula (moderator band)
7 .	Crista terminalis (in reflected part of atrial wall)
8 .	Papillary muscles
9 .	Posterior cusp tricuspid valve
10 .	Chordae tendineae
11 .	Septal (medial) cusp of tricuspid valve
12 .	External surface of right atrium
13 .	Inferior vena cava (cut off)