how many chambers does the heart have - 4, movement of blood through the heart and body - Circulation, The beating sound your heart makes comes from - Valves closing, circulation, the heart provides - oxygen , wall separates the left side and right side of the heart - Septum, parts act like doors that control blood flow in the heart - Valves, organ removes waste from blood - Kidneys, keep your heart strong by: - Doing activities, These are tubes that carry blood back to the heart:VeinsVeinsVeins - Veins, the heart is made up of what muscles - cardiac,

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