Dissection of pericardium and heart in situ

Latex cast of cavities of right atrium and right ventricle

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Image #117-3
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Legend Image
Dissection of pericardium and heart in situ
Latex cast of cavities of right atrium and right ventricle
The anterior walls of the right atrium, right ventricle, conus arteriosus and pulmonary trunk have been cut away to reveal a blue latex cast which fills the interior of these chambers. Impressions in the cast produced by muscle trabeculae are clearly visible. Casts of several anterior cardiac veins (9) have been dissected free in removing the wall of the heart and are visible attached at their points of entry into the right atrium.
1 . Superior extent of pericardial cavity
2 . Phrenic nerve
3 . Superior vena cava
4 . Upper pointer: Right auricle (epicardium and myocardium intact) Lower pointer: Latex cast of right auricle
5 . Right coronary artery (cut off)
6 . Margin of right atrioventricular opening
7 . Cast of right atrium
8 . Cast of right atrioventricular opening
9 . Anterior cardiac veins
10 . Myocardium of right ventricle
11 . Left vagus nerve
12 . Ascending aorta
13 . Latex cast of sinus of anterior cusp of pulmonary valve
14 . Pericardium
15 . Latex cast of conus arteriosus
16 . Anterior interventricular sulcus
17 . Left ventricle
18 . Latex cast of right ventricle