1
.
| Ascending aorta |
2
.
| Superior vena cava |
3
.
| Right auricle |
4
.
| Right atrium (opened) |
5
.
| Anterior cusp tricuspid valve |
6
.
| Right atrioventricular opening |
7
.
| Anterior papillary muscle |
8
.
| Trabeculae carnae |
9
.
| Posterior cusp tricuspid valve |
10
.
| Septal (medial) cusp of tricuspid valve |
11
.
| Cut edge of myocardium of right ventricle |
12
.
| Pulmonary trunk |
13
.
| Right semilunar cusp |
14
.
| Semilunar valves |
15
.
| Valve of left pulmonary trunk Anterior semilunar cusp |
16
.
| Conus arteriosus (cut margins retracted) |
17
.
| Supraventricular crest |
18
.
| Septal papillary muscle |
19
.
| Chordae tendineae |
20
.
| Septomarginal trabecula (moderator band) |
21
.
| Position of anterior interventricular sulcus |
22
.
| Left ventricle |