Answers

2015-08-12T19:49:41+08:00
Heart pumps blood into every parts of the body by supirrior vena cava
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2015-08-13T18:20:57+08:00


the heart pumps blood and the blood vessels is a passageway that is responsible for the flow of blood the diff. kinds of blood vessel is Artery is the largest Veins and the Capillaries which is the smallest and the largest Artery is Aorta.

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