Internal and External Structure of the Human Heart
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From bodyTo lungsFrom lungsTo Body
A·B·C·D·
Deoxygenated Blood
Front View - Internal
Front View - External Back View - External
Oxygenated Blood
Blood Flow
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112
3
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7
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910
A
A
BB
CC
D
D
3
4
1
5
7
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8
1415 16
17
18
2023
1211
9
13
10
5
19
2
21
22
24
25
Right AtriumLeft AtriumRight VentricleLeft VentricleAtrioventricular (Tricuspid) ValveAtrioventricular (Mitral) Valve
Semilunar (Pulmonary) Valve Semilunar (Aortic) ValveChordae TendinaeVentricular SeptumAtrial Septum
1·2·3·4·5·
6·
7·
8·
9·10·11·
Human Heart - Internal Anatomy(left panel)
Human Heart - External Anatomy(middle panel)
Left Subclavian ArteryRight Coronary ArteryCircumflex Branch of Left Coronary ArteryGreat Cardiac VeinLeft Anterior Descending ArteryPost. Interventricular ArteryMiddle Cardiac VeinRight Marginal ArteryPosterior Vein of Left VentricleSmall Cardiac Vein
Superior Vena CavaInferior Vena CavaAorta (Aortic Arch)Pulmonary TrunkLeft AtriumRight AtriumLeft VentricleRight VentricleLeft Pulmonary ArteriesRight Pulmonary ArteriesL. Pulmonary VeinsR. Pulmonary VeinsApex of HeartBrachiocephalic TrunkLeft Common Carotid Artery
1·2·3·4·5·6·7·8·9·
10·11·
12·13·14·
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17·
18·
19·20·
21·
22·23·24·
25·
