Detailed dissection of heart
Tricuspid valve viewed from below
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Image #121-6
Detailed dissection of heart
Tricuspid valve viewed from below
The ventricular aspect of the tricuspid valve is displayed by viewing the heart from a position near its apex. The interior of the right atrium is visible through the ostium of the valve.
- Myocardium of anterior wall of right ventricle (cut and elevated)
- Posterior cusp tricuspid valve
- Septal (medial) cusp of tricuspid valve
- Chordae tendineae
- Epicardium of right ventricle
- Posterior papillary muscle
- Trabeculae carnae
- Anterior papillary muscle (attached to reflected flap of ventricular wall)
- Left pointer: Fossa ovalis Right pointer: Border of fossa ovalis
- Right auricle
- Right atrioventricular opening (arrow on drawing indicates interior of right atrium beyond opening)
- Anterior cusp tricuspid valve
- Supraventricular crest
- Area in which right branch of A-V bundle descends into right ventricle (covered by endocardium)
- Septomarginal trabecula (moderator band)
- Septal papillary muscles