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These vessels carry blood away from the heart.

• arteries

• veins

• capillaries

• superior vena cava

The exchange of oxygen and carbon dioxide takes place in these vessels.

• arteries

• veins

• inferior vena cava

• lung capillaries

Brings blood to the heart from the upper portion of the body.

• pulmonary artery

• superior vena cava

• pulmonary vein

• inferior vena cava

Valve between the left atrium and the left ventricle.

• tricuspid valve

• mitral valve

• pulmonary valve

• aortic valve

Thickest walled chamber of the heart.

• left atrium

• right ventricle

• left ventricle

• right atrium

Valve between the left ventricle and the aorta.

• aortic valve

• pulmonary valve

• tricuspid valve

• mitral valve

These vessels carry blood to each lung from the right ventricle.

• superior vena cava

• pulmonary arteries

• pulmonary veins

• aorta

Valve between the right atrium and the right ventricle.

• mitral valve

• pulmonary valve

• aortic valve

• tricuspid valve

Blood in the right atrium:

• Oxygenated

• Deoxygenated

Blood in the left ventricle:

• Oxygenated

• Deoxygenated