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Capillaries

Vein

Arteries

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Tricuspid Valve

Bicuspid (Mitral) Valve

Pulmonary Valve

Aortic Valve

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Right Atrium

Right Ventricle

Left Ventricle

Left Atrium

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From superficial to deepest:

Pericardium

Myocardium (muscle layer)

Endocardium (endothelial lining)

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Interatrial septum: separates the atriums

Interventricular septum: separates the ventricles