pumps blood throughout the body
pumps blood out of the heart
Receives blood coming into the heart
Prevents blood from flowing backwards opens and closes making the lub-dub noises
carries blood away from the heart and to the lungs and other body parts
carries blood back to the heart from the lungs of the body
allows materials to be exhanged between the blood and the body parts
red blood cell
carries O and CO2 to and from the heart and lungs and body parts
white blood cells
form blood clots to stop bleeding
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