Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Detailed dissection of heart

Coronary sinus, external and internal aspects

Image #121-2

KEYWORDS: Heart, Right heart.

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Detailed dissection of heart
Coronary sinus, external and internal aspects
The right atrial wall has been cut and reflected in such a way that the cut section of the wall is seen in relation to the coronary sinus (5). The view into the atrium is from the right side. The heart is in a position with its apex directly downward.
1 . Pectinate muscles in reflected part of atrial wall
2 . Sinus of vena cava
3 . Inferior vena cava
4 . Valve of inferior vena cava
5 . Coronary sinus (covered by muscle fibers continuous with atrial myocardium)
6 . Upper pointer: Valve of coronary sinus Lower pointer: Latex cast in opening of coronary sinus
7 . Left ventricle (myocardium exposed)
8 . Posterior interventricular sulcus
9 . Middle cardiac vein
10 . Interatrial septum
11 . Fossa ovalis
12 . Border of fossa ovalis
13 . Position of atrioventricular node (covered by endocardium)
14 . Septal (medial) cusp of tricuspid valve
15 . Right atrioventricular opening
16 . Anterior cusp tricuspid valve
17 . Myocardium right atrium
18 . Coronary sulcus
19 . Right coronary artery
20 . Right ventricle (myocardium exposed)

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