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Circulatory System

Circulatory System. By Alena Watson August 30,2011 5 th grade. Cardiac Muscle. A cardiac muscle is a heart. The cardiac muscle has different passages for blood to flow through. Your cardiac muscle is between your lungs, almost in the center of your chest. Arteries.

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Circulatory System

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  1. Circulatory System By Alena Watson August 30,2011 5th grade

  2. Cardiac Muscle • A cardiac muscle is a heart. • The cardiac muscle has different passages for blood to flow through. • Your cardiac muscle is between your lungs, almost in the center of your chest.

  3. Arteries • Arteries carry blood away from your heart to tiny blood vessels called capillaries. • The pulmonary artery carries deoxygenated blood.

  4. White Blood Cells • White blood cells help fight infection and diseases. • Blood contains fewer white blood cells than red blood cells but white cells are usually larger than red cells.

  5. Red Blood Cells • Red blood cells carry oxygen. • Iron is an important mineral which helps give the red blood cells their color. • The reason your blood appears to be red is that every drop contains millions of red blood cells.

  6. Plasma • Plasma is a yellow or straw-colored liquid that is mostly water. • Plasma also helps fight infection and helps the blood to clot and form a scab over a wound.

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