White blood cells - Cells that protect the body from disease, Red blood cells - carry oxygen and carbon dioxide, Platelets - cell pieces that make blood clot, Atria - two chambers in the heart that receive blood from the body, ventricles - two chambers in the heart that send blood out to the body, Arteries - carry blood away from the heart, Veins - Carry blood back to the heart, capillaries - connect arteries and veins, Valves - make it so blood can only flow in one direction, plasma - the liquid portion of blood, septum - thick tissue wall that separates the right and left sides of the heart, Three components of the circulatory system - heart, blood, blood vessels, circulatory system - system that allows blood to move throughout the body, carried to the tissues of the body - oxygen and nutrients, carried away from the tissues of the body - carbon dioxide and other wastes,

Circulatory system

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