1
.
| Trabeculae carnae |
2
.
| Septomarginal trabecula (moderator band, along the surface of which the right branch of the atrioventricular bundle is visible as a narrow white streak) |
3
.
| Septal (medial) cusp of tricuspid valve |
4
.
| Location of atrioventricular node (subendocardial) |
5
.
| Coronary sinus (opening into right atrium) |
6
.
| Valve of coronary sinus |
7
.
| Valve of inferior vena cava |
8
.
| Endocardium of anterior wall of right atrium |
9
.
| Anulus fibrosus |
10
.
| Anterior cusp tricuspid valve |
11
.
| Anterior papillary muscle |
12
.
| Chordae tendineae |
13
.
| Right ventricle |
14
.
| Posterior papillary muscle |
15
.
| Posterior cusp tricuspid valve |