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Body System
Question | Answer |
---|---|
the systems of vessels and organs that transports materials around the body | cardiovascular system |
to move in a repeated cycle | circulate |
one of the two upper chambers of the heart | atrium |
one of the two lower chambers of the heart | ventricle |
a flap of tissue that prevents the backflow of blood | valve |
lacking oxygen | deoxygenated |
rich in blood | oxygenated |
the liquid portion of blood | plasma |
a cell that delivers oxygen to body cells | red blood cell |
a cell that defends the body against diseases | white blood cell |
a cell fragment that helps clot the blood | platelet |
a blood vessel that carries oxygenated blood away from the heart | artery |
the largest artery in the human body | aorta |
a tiny blood vessel that connects arteries to veins | capillary |
a blood vessel that carries deoxygenated blood back to the heart | vein |
the body system that helps defend against diseases | immune system |
the proteins made by white blood cells that help destroy bacteria and viruses | antibodies |
dead or weakened bacteria or viruses that trigger the production of antibodies | vaccine |