Blood Vessels - Tubes that carry blood around the body, Circulatory system - Includes a heart to pump blood and a network of tubes called blood vessels, Heart - Muscular pump with four hallow compartments, Heartbeat - Pumping action of heart, or sound made by the heart, Pulse - Rhythm of heartbeat felt in wrist or neck, Heart rate - How many times your hear beats in one minute, Lungs - Hollow, thin-walled pouches inside your chest that absorbs oxygen from air, Oxygenated Blood - Blood that contains oxygen and is red, Deoxygenated Blood - Blood that does not contain oxygen and is blue,

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