Bassett Collection of Stereoscopic Images of Human Anatomy

Detailed dissection of heart

Interior of left atrium, posterior view

Image #122-1

KEYWORDS: Heart, Left heart.

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Detailed dissection of heart

Interior of left atrium, posterior view

The left atrium has been opened by means of a U-shaped incision through its posterior wall. The left surface of the interatrial septum (13) appears opposite this incision.

1 .	Pulmonary trunk (cut across at bifurcation into right and left branches)
2 .	Left pulmonary veins (cut at entry into left atrium)
3 .	Left auricle
4 .	Fat in posterior part of coronary sulcus
5 .	Left atrioventricular opening
6 .	Reflected flap of posterior atrial wall
7 .	Line of reflection of serous pericardium
8 .	Right pulmonary artery
9 .	Superior vena cava
10 .	Right pulmonary veins
11 .	Right atrium
12 .	Valve of foramen ovale (falx septi)
13 .	Interatrial septum
14 .	Inferior vena cava