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Start
Finish

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Veins

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Capillaries

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Arteries all over the body

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Aorta

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Aortic valve

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Pulmonary vein

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Lung

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Lung

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Pulmonary artery

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Mitral valve

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Pulmonary valve

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Tricuspid valve

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Left ventricle

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Left atrium

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Right ventricle

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Right atrium

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Inferior vena cava

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interatrial septum

interventricular septum

layers endocardium
myocardium                                                  ↑interior of the heart
pericardium ↗visceral pericardium
↘parietal pericardium

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Right atrium            Left atrium

Right ventricule      Left ventricule

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Tricuspid valve                         Mitral valve

Pulmonary valve                      Aortic valve

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Artery
Vein              ↓ thickness
Capillary

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Superior vena cava