Circulatory System Key Vocabulary

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Hemoglobin

Back

A protein in red blood cells that carries oxygen throughout the body.

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Circulatory System

Back

The system that circulates blood through the body, consisting of the heart, blood vessels, and blood.

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Ventricles

Back

The two lower chambers of the heart that pump blood out to the lungs and body.

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Leukemia

Back

A type of blood cancer that starts in the bone marrow and causes the production of abnormal white blood cells, that don't function correctly.

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Cardiovascular Disease

Back

A class of diseases that involve the heart or blood vessels.

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Anemia

Back

A condition where the body does not have enough healthy red blood cells to carry oxygen throughout the body.

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Atrium

Back

The two upper chambers of the heart that receive blood from the veins.

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Platelets

Back

Small blood components that help in the clotting process to stop bleeding.

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Artery

Back

A blood vessel that carries blood away from the heart to the rest of the body.

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Vein

Back

A blood vessel that carries blood towards the heart.