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right left The heart is spilt up into two halves. There is a left half and a right half. The left half pumps oxygenated blood around the body. The right half only pumps deoxygenated blood back to the lungs. The left hand side there fore has to be stronger, and has a thicker muscle surrounding it. The right is fairly skinny compared to the left side. I thought the valves were going to be big and easy to see, but they weren't. In fact, they were very small, very thin and fairly transparent. The valves themselves didn't appear to be that strong, but they were held in place by tendons. These tendons were small, but very tough. They were difficult to snap by hand, but cut fairly easy with a scalpel. They kept the valves in place and only let the valve move one way. The veins were easily noticeable to the veins because, although they...

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